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Interested in opinions about cutting the rear package tray for stereo speakers
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56D500boy
Posted 2017-03-12 8:31 PM (#535815)
Subject: Interested in opinions about cutting the rear package tray for stereo speakers



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I have had my 910HR ElectroTouch Tuning (aka "Town and Country") radio converted to all the new stereo/bluetooth/USB/iPod mod-cons for my 1956 Dodge Custom Royal D500. Result is I will be installing 6 x 9 speakers in the rear package tray and a new 6 x 9 in the dash (once I get the proper mounting plate from John at Big M).

Having recently seen this 1958 Plymouth parcel tray, I was curious what I was going to be up against in my 56 Dodge. That 58 had three 6 x 9 openings and I was envious. (I was pretty sure that I only had one 5 x 7 opening, in the center. )



So today, I pulled out the rear seat (man those suckers are heavy mothers) and removed the baby blue mouse fur parcel tray cover (not pretty) to assess the situation.

The photos below show the situation. I think that I will be working with the square openings (not sure what the other openings are for). The square opening is about 5.75" per side. That is about the same size as the narrow part of the 6 x 9 Image Dynamics speakers that I think I am using in the back.

The other photos show a token (old) 6 x 9 sitting over the square opening and then me holding the token 6 x 9 up from underneath showing how most of the speaker would be firing up through that square opening.

My dilemma is I know that if I don't open up the parcel tray I will compromise the speaker at least somewhat and sound quality might suffer (how much???). That said, the package tray frame has survived this long (pushing 61 years) without being cut open, I am reluctant to get out the Bosch jig saw and metal blades. The new Masonite package tray that will sit on the metal frame will be cut 6 x 9 and the speakers will be hung from below.

What would you do (assuming that the speakers are going in there for sure)?

Edited by 56D500boy 2017-03-12 10:51 PM




(56DodgeCRSedanParcelTray_Left.jpg)



(56DodgeCRSedanParcelTray_Center.jpg)



(56DodgeCRSedanParcelTray_Right.jpg)



(Token6x9SpeakerOver5point75SquareHole.jpg)



(Token6x9SpeakerUnder5point75SquareHole.jpg)



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Attachments 56DodgeCRSedanParcelTray_Left.jpg (121KB - 27 downloads)
Attachments 56DodgeCRSedanParcelTray_Center.jpg (125KB - 24 downloads)
Attachments 56DodgeCRSedanParcelTray_Right.jpg (139KB - 23 downloads)
Attachments Token6x9SpeakerOver5point75SquareHole.jpg (116KB - 27 downloads)
Attachments Token6x9SpeakerUnder5point75SquareHole.jpg (117KB - 28 downloads)
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Phatton
Posted 2017-03-12 10:13 PM (#535820 - in reply to #535815)
Subject: Re: Interested in opinions about cutting the rear package tray for stereo


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If I was doing this, I would use a piece of 1/4 plywood for the package tray instead of masonite. Mount the speakers to the plywood so that the base of the speakers are over the square holes in the panel and install it that way. It looks like your sheet metal is deep enough to fit the rest speaker.
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mikes2nd
Posted 2017-03-12 10:17 PM (#535821 - in reply to #535815)
Subject: Re: Interested in opinions about cutting the rear package tray for stereo


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Never cut package trays... never...
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56D500boy
Posted 2017-03-12 11:28 PM (#535826 - in reply to #535820)
Subject: Re: Interested in opinions about cutting the rear package tray for stereo



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Phatton - 2017-03-12 10:13 PM If I was doing this, I would use a piece of 1/4 plywood for the package tray instead of masonite. Mount the speakers to the plywood so that the base of the speakers are over the square holes in the panel and install it that way. It looks like your sheet metal is deep enough to fit the rest speaker.


mikes2nd - 2017-03-12 10:17 PM
Never cut package trays... never...


Thanks for the replies. Somebody offline thought there were 6 x 9 holes. (I confused them with the 58 Plymouth photo I guess). There are no 6 x 9 factory holes in my blue painted metal 1956 Dodge parcel tray. The one that had all the 6 x 9 holes was the 1958 Plymouth. Not my 1956 Dodge.

The 1/4" plywood for the parcel tray and mounting the speakers on top rather than underneath was an interesting idea. I thought I should check that out so I just went out to the garage to check out that possibility.

See the photos below.

It's possible but I think that the plywood would have to be 1/2" thick, not 1/4". Not sure what the issues would be.

Now I really need the real (not the token 6 x 9) speakers to make the final decision.

Regardless of mounting them above or below the parcel tray, I think that I have decided to NOT cut the old girl. Too much trauma. Trust me when I look at my heart surgery scar in the mirror, it looks and feels painful. Too painful to inflict on the car as well.





Edited by 56D500boy 2017-03-13 2:07 AM




(Token6x9SpeakerSittingInTheSquare5point75inchHole.jpg)



(Token6x9SpeakerSittingInTheSquare5point75inchHoleWIthHeightMeasurement.jpg)



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Attachments Token6x9SpeakerSittingInTheSquare5point75inchHole.jpg (114KB - 27 downloads)
Attachments Token6x9SpeakerSittingInTheSquare5point75inchHoleWIthHeightMeasurement.jpg (109KB - 23 downloads)
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wizard
Posted 2017-03-13 2:47 AM (#535833 - in reply to #535815)
Subject: Re: Interested in opinions about cutting the rear package tray for stereo speakers



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I can recommend the RetroSound dash speakers; one dual core speaker gives a fair stereo effect and it fits right in.

I have used one in my car for years now and I'm very satisfied with the sound

https://www.retromanufacturing.com/collections/dash-speakers
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RUSTORICHES
Posted 2017-03-13 11:00 AM (#535847 - in reply to #535815)
Subject: Re: Interested in opinions about cutting the rear package tray for stereo speakers


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If your picture is not deceiving me that speaker does not look to be in the best condition [old] the paper around the outside looks to be in poor condition. I agree with mikes2nd I recommend new speakers/and enclosures mounted under the package tray secured as not to create a buzzing or rattle of coarse. Every rice rocket on the planet has some type of aftermarket adaptor kits you might find something that works from that world. I myself like just listening to that sound of the Hemi………LOL
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56D500boy
Posted 2017-03-13 11:17 AM (#535849 - in reply to #535847)
Subject: Re: Interested in opinions about cutting the rear package tray for stereo speakers



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RUSTORICHES - 2017-03-13 11:00 AM If your picture is not deceiving me that speaker does not look to be in the best condition [old] the paper around the outside looks to be in poor condition.


Thanks Glen. I guess you missed the caption on those speaker photos, i.e. "Token6x9.....". It's just a junk 6 x 9 that I borrowed from Larry Wood at Vintage Autosound in Mission BC to figure a few things out, starting with the dash speaker. I will be using brand new speakers and mounting them firmly to the parcel tray, most likely with a 1/2" thick (or more) plywood adapter that I will cut and shape appropriately.

The sound of my Hemi is nice but my wife might not appreciate it as much as me when we take short road trips. Plus I want to go to cruise nights with appropriate period tunes playing.



/Dave F
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1960fury
Posted 2017-03-13 11:34 AM (#535853 - in reply to #535821)
Subject: Re: Interested in opinions about cutting the rear package tray for stereo



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mikes2nd - 2017-03-12 10:17 PM

Never cut package trays... never...


i second that.
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Powerflite
Posted 2017-03-13 4:08 PM (#535871 - in reply to #535853)
Subject: Re: Interested in opinions about cutting the rear package tray for stereo



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Quadruple agreed not to cut the package tray. But I plan to use 6.5" round speakers in those same locations on my '56 Plymouth. I think you would get a better sound with it and it fits the holes better than the 6x9. If you want a more full sound, you can put in a 6.5" with smaller components to add to other locations on the board. Using a round speaker with separate components is actually the recommended best sound you can put into a car. That way you can mount the large speaker below the tray, and it won't be suppressed by it so much. Adding the speaker to a board on top is a novel approach, but it would stick up noticeably higher in the back window.
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56D500boy
Posted 2017-03-13 6:48 PM (#535881 - in reply to #535871)
Subject: Re: Interested in opinions about cutting the rear package tray for stereo



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Powerflite - 2017-03-13 4:08 PM
Quadruple agreed not to cut the package tray. But I plan to use 6.5" round speakers in those same locations on my '56 Plymouth. I think you would get a better sound with it and it fits the holes better than the 6x9.


I had a discussion with Greg at RetroSound and Larry at Vintage Autosound this morning about 6 x 9s vs 6.5" rounds. My conclusion was the 6 x 9s will give me better base response than normal 2-way 6.5" rounds. So 6 x 9's it is.

I will not cut the rear package tray metal. I have sourced 5' x 5' sheet of 11 ply 1/2" thick Baltic birch plywood that I will pick-up tomorrow. I will use a 18" x 60" strip of it to cut the 16" x 59" (rounded/oval at the back edge) package tray top. I will use some of the remaining plywood to create adapter plates between the 6 x 9 speakers and the 5.75" square opening to mount the speakers to the bottom side of the package tray metal frame. The 16" x 59" package tray plywood top will get 6 x 9 openings (despite the 5.75" square hole in the metal) and be covered in a sky blue marine vinyl over a sound deadening material like Dynamat.

I might get fancy with the vinyl and two tone it. Maybe three tone for fun. (I'll play with it in Paint and report back).

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56D500boy
Posted 2017-03-13 9:04 PM (#535890 - in reply to #535881)
Subject: Re: Interested in opinions about cutting the rear package tray for stereo



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56D500boy - 2017-03-13 6:48 PM
The 16" x 59" package tray plywood top will get 6 x 9 openings (despite the 5.75" square hole in the metal) and be covered in a sky blue marine vinyl over a sound deadening material like Dynamat.

I might get fancy with the vinyl and two tone it. Maybe three tone for fun. (I'll play with it in Paint and report back).
:)


I'm back from playing with "Paint." Two tone on the right, three tone on the left. The black blobs represent the chrome 6 x 9 covers that I was going to use.

The whole thing might be (read: Is) over the top. If I could find some OE 6 x 9 covers from a later FL car, I might go with those and paint them sky blue and just go monotone vinyl.



Edited by 56D500boy 2017-03-13 9:09 PM




(ParcelTrayCoverMockUp.png)



(6x9SpeakerCovers.jpg)



Attachments
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Attachments ParcelTrayCoverMockUp.png (30KB - 24 downloads)
Attachments 6x9SpeakerCovers.jpg (114KB - 27 downloads)
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56D500boy
Posted 2017-03-21 6:24 PM (#536392 - in reply to #535890)
Subject: Re: Interested in opinions about cutting the rear package tray for stereo



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More fun with Paint (the program). Remembering that my 56 Custom Royal is three tone and the interior at least two tone, which of the two parcel tray options (done in Paint over a photo of the new parcel tray board) is the least offensive, the upper one or the lower one? My wife even picked.



Edited by 56D500boy 2017-03-21 8:07 PM




(56CustomRoyalInSameColours.jpg)



(56DodgeCustomRoyal541TrimCodeInterior_1.jpg)



(56DodgeCustomRoyal541TrimCodeInterior_2.jpg)



(ParcelTrayMarch21Trials1&2.jpg)



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Attachments 56CustomRoyalInSameColours.jpg (65KB - 25 downloads)
Attachments 56DodgeCustomRoyal541TrimCodeInterior_1.jpg (55KB - 23 downloads)
Attachments 56DodgeCustomRoyal541TrimCodeInterior_2.jpg (89KB - 28 downloads)
Attachments ParcelTrayMarch21Trials1&2.jpg (238KB - 22 downloads)
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wizard
Posted 2017-03-22 2:29 AM (#536428 - in reply to #535815)
Subject: Re: Interested in opinions about cutting the rear package tray for stereo speakers



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The interior of your car is very sober and classy, a calm blue heaven. I would go for more discrete speaker grill/mesh, painted tone-in-tone with a one color shelf.
In my opinion, less is more here.
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60 dart
Posted 2017-03-22 4:20 AM (#536430 - in reply to #535815)
Subject: Re: Interested in opinions about cutting the rear package tray for stereo speakers



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make the 6x9's work without cutting or something closer to fit inside the hole . those music note covers , uhhhhhhhhhhhhhhh no---------------------------------------------later
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mstrug
Posted 2017-03-22 5:12 AM (#536432 - in reply to #536428)
Subject: Re: Interested in opinions about cutting the rear package tray for stereo speakers



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wizard - 2017-03-22 1:29 AM

The interior of your car is very sober and classy, a calm blue heaven. I would go for more discrete speaker grill/mesh, painted tone-in-tone with a one color shelf.
In my opinion, less is more here.


I agree: use the same color as the top of the seat, Use stock speaker covers with a matching color screen mesh. Stripes don't match the fancy interior. Marc.
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56D500boy
Posted 2017-03-22 11:38 AM (#536444 - in reply to #536432)
Subject: Re: Interested in opinions about cutting the rear package tray for stereo speakers



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LOL. I guess I should have expected a number of responses as to how you would do it *IF* it was your car instead of a vote on the two options that I presented.

This old girl is never going to be a concours queen or worth mega bucks, even with the D500 hemi and the 12" brakes, so I am making minor modifications to the car as if I owned it back in the 1950's (or 60's). And I am having fun doing so.

Nothing I am doing is permanent. I am not cutting the metal parcel tray. I even painted it (both sides) because of minor surface rust. Everything can be reversed back to stock by the next owner after I pass. I'll even keep the moth-eaten weak cardboard parcel tray and the wax/tar impregnated padding/insulation that came with the car so the future Swedish owner can restore it back to show room condition in the year 2035.



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RUSTORICHES
Posted 2017-03-22 9:47 PM (#536491 - in reply to #535815)
Subject: Re: Interested in opinions about cutting the rear package tray for stereo speakers


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Don't forget the rubber ducky hood ornament you're shopping for also……….just kidding…LOL Treat the old gal to the best.
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56D500boy
Posted 2017-03-23 1:42 AM (#536504 - in reply to #536491)
Subject: Re: Interested in opinions about cutting the rear package tray for stereo speakers



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RUSTORICHES - 2017-03-22 9:47 PM Don't forget the rubber ducky hood ornament you're shopping for also……….just kidding…LOL Treat the old gal to the best.


LOL. Well, I *was* thinking of one of these:



(Kidding)



Edited by 56D500boy 2017-03-23 1:49 AM
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56D500boy
Posted 2017-04-04 9:07 PM (#537387 - in reply to #536444)
Subject: Rear Speaker Mounting Template for 1956 Dodge parcel tray



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56D500boy - 2017-03-22 11:38 AM
Nothing I am doing is permanent. I am not cutting the metal parcel tray. I even painted it (both sides) because of minor surface rust. Everything can be reversed back to stock by the next owner after I pass. I'll even keep the moth-eaten weak cardboard parcel tray and the wax/tar impregnated padding/insulation that came with the car so the future Swedish owner can restore it back to show room condition in the year 2035.


Once that decision was made and I was looking at not cutting the parcel tray, I would be looking at mount the 6 x 9 speakers under the existing 5.75" square holes on either side, perferably using the existing holes beside the opening. They are on a 4" x 7" center to center grid. Also because some of the 6 x 9 gets covered by the material beside the 5.75" square holes, I needed to drop the speaker down to give it some room and not trap sound.



Initially, I made a speaker mounting plate out of 11 ply Baltic Birch 1/2" plywood. That was the Mark 1 plate (not shown here). I didn't think 1/2" was a enough so I made the Mark 2 plate out of 3/4" thick Mdf. I thought that the clearance from the plate mounting holes (the ones on the 4" x 7" grid) to the edge of the 6 x 9 cut-out was too slim so I decided on a Mark 3 plate with more "meat" in that area. The following show the evolution of the Mark 3 plate and the potential that I will go back to the Mark 2 plate because of potential interference between the "bumps" and the edge of the speaker.

I'll sleep on the Mark 2 vs Mark 3 pros and cons tonight. In the meantime, now that I know where the holes in the 1/2" thick plywood parcel tray are, I am prepping to upholster it as per one of those previous designs I posted (the one with the lighter blue in the middle section).



Edited by 56D500boy 2017-04-04 11:04 PM




(Mark2SpeakerMountingPlateTopSideWithSpeaker.jpg)



(ParcelTraySpeakerMountingPlate_Annotated.jpg)



(Mark3SpeakerPlate.jpg)



(Mark3SpeakerPlateTopSide.jpg)



(LeftSpeakerPlateTemporarilyMounted.jpg)



(RightSpeakerPlateTemporarilyMounted.jpg)



(LeftSpeakerPlateTemporarilyMounted_underside.jpg)



(RightSpeakerPlateTemporarilyMounted_underside.jpg)



(Mark3SpeakerPlateBottomSideWithSpeakerShowingPathToSpeakerMountingHoles.jpg)



(Mark3SpeakerPlateWithSpeakerInPositionTopSide.jpg)



(Mark3SpeakerPlateWithSpeakerInPositionTopSideShowingClearanceToBump.jpg)



Attachments
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Attachments Mark2SpeakerMountingPlateTopSideWithSpeaker.jpg (103KB - 26 downloads)
Attachments ParcelTraySpeakerMountingPlate_Annotated.jpg (168KB - 23 downloads)
Attachments Mark3SpeakerPlate.jpg (73KB - 23 downloads)
Attachments Mark3SpeakerPlateTopSide.jpg (80KB - 18 downloads)
Attachments LeftSpeakerPlateTemporarilyMounted.jpg (96KB - 20 downloads)
Attachments RightSpeakerPlateTemporarilyMounted.jpg (95KB - 23 downloads)
Attachments LeftSpeakerPlateTemporarilyMounted_underside.jpg (101KB - 22 downloads)
Attachments RightSpeakerPlateTemporarilyMounted_underside.jpg (102KB - 23 downloads)
Attachments Mark3SpeakerPlateBottomSideWithSpeakerShowingPathToSpeakerMountingHoles.jpg (102KB - 20 downloads)
Attachments Mark3SpeakerPlateWithSpeakerInPositionTopSide.jpg (101KB - 20 downloads)
Attachments Mark3SpeakerPlateWithSpeakerInPositionTopSideShowingClearanceToBump.jpg (138KB - 23 downloads)
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Chrispy
Posted 2017-04-04 9:22 PM (#537389 - in reply to #535815)
Subject: Re: Interested in opinions about cutting the rear package tray for stereo speakers



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The plate worked out nicely, its a good idea anyways as stiffening the shelf can only help the sound. I would suggest picking up some sound deadener for the shelf as well. Since you went image dynamics, which is an excellent choice. I would suggest running an amp to them, one of these new class D micro amps would run on bottom the rear shelf easily as they are small and they are very efficient. I run this pioneer in my DD saab and it works well and powers a set of focal polyglass 6.5s. Bridged its good for 90w, or 45x4.

https://www.crutchfield.com/p_130GMD1004/Pioneer-GM-D1004.html?tp=35...
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56D500boy
Posted 2017-04-05 4:00 PM (#537442 - in reply to #537389)
Subject: Re: Interested in opinions about cutting the rear package tray for stereo speakers



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Chrispy - 2017-04-04 9:22 PM The plate worked out nicely, its a good idea anyways as stiffening the shelf can only help the sound. I would suggest picking up some sound deadener for the shelf as well. Since you went image dynamics, which is an excellent choice. I would suggest running an amp to them


I have Dynamat on the top of the metal parcel shelf and a lesser brand on the bottom of the metal. Next time (ha ha) I do that, I would put the Dynamat on the bottom and the lesser brand on the top. I would also mark where those holes are *BEFORE* I cover up both top and bottom of the shelf, so I don't have to probe with a bulletin board push pin to find them again (oops). I will probably put a bead of accoustic sealant between the bottom of my plywood parcel shelf and the Dynamat-covered metal when I install the shelf after upholstering it.

The radio conversion that I had done with Aurora Design components, including the FMR-2 AM/FM Receiver. http://www.tech-retro.com/Aurora_Design/FMR.html



"The digitally controlled power amplifier provides up to 4 X 45W of output power into 4 ohm speakers and 2 X 75W into 2 ohm speakers and is fully protected against over-voltages, shorts between lines as well as to ground or power. It is controlled by the onboard microprocessor and intelligently monitors the speaker connections and makes decisions such as enabling or disabling the balance and fader controls based on these readings. It uses a unique Class SB topology similar to standard Class AB while using only 1/3 the power at normal listening levels resulting in less heat being generated."

I will try it without an external amp and see how it goes.



Edited by 56D500boy 2017-04-05 4:01 PM
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mstrug
Posted 2017-04-05 4:58 PM (#537447 - in reply to #535815)
Subject: Re: Interested in opinions about cutting the rear package tray for stereo speakers



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" provides up to 4 X 45W of output power into 4 ohm speakers AND 2 X 75W into 2 ohm speakers". Is it really a 6 speaker system?

Edited by mstrug 2017-04-05 4:59 PM
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56D500boy
Posted 2017-04-05 5:59 PM (#537450 - in reply to #537447)
Subject: Re: Interested in opinions about cutting the rear package tray for stereo speakers



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mstrug - 2017-04-05 4:58 PM

" provides up to 4 X 45W of output power into 4 ohm speakers AND 2 X 75W into 2 ohm speakers". Is it really a 6 speaker system?


LOL. Must be a typo. Should likely have been "OR" (not "and").

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mstrug
Posted 2017-04-05 7:09 PM (#537460 - in reply to #535815)
Subject: Re: Interested in opinions about cutting the rear package tray for stereo speakers



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Cool!
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DepsilonD
Posted 2017-04-06 12:55 PM (#537492 - in reply to #535815)
Subject: Re: Interested in opinions about cutting the rear package tray for stereo speakers



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Nice work Dave!
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56D500boy
Posted 2017-04-06 2:56 PM (#537500 - in reply to #537492)
Subject: Re: Interested in opinions about cutting the rear package tray for stereo speakers



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DepsilonD - 2017-04-06 12:55 PM
Nice work Dave!


Thanks. There is going to be a Mark 3.1 version with modified "ears" to make sure that the speaker diaphragm edge does not touch the ears. I am also revising the mounting method to use "Chicago Screws" at least on the bottom.

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56D500boy
Posted 2017-07-22 8:56 PM (#544641 - in reply to #537500)
Subject: Re: Interested in opinions about cutting the rear package tray for stereo speakers



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It's been months since I got back at this particular project (got lost with the D500 valve covers and valve adjusting and the driver's door window channels etc.). A couple of weeks ago my sister was in town and I got her to help me via sewing a series of straight lines (at the same spacing as the OE seat cover simulated roll and tuck) with vinyl and polyethylene flooring underlay foam. I got back to in the other day and added the vinyl and mocked up the "Chrome" (polished aluminum) strips.

Two photos. One from yesterday, one from today (no, I didn't make a mistake on the orientation of the chrome grills, I am trying to decide which way I want them)

Remember this is my back seat (in theory):







Edited by 56D500boy 2017-07-22 9:03 PM




(DForgiesParcelTrayPartWayThrough_1.jpg)



(DForgiesParcelTrayPartWayThrough_2.jpg)



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Attachments DForgiesParcelTrayPartWayThrough_1.jpg (133KB - 18 downloads)
Attachments DForgiesParcelTrayPartWayThrough_2.jpg (195KB - 17 downloads)
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51coronet
Posted 2017-07-22 9:33 PM (#544643 - in reply to #535815)
Subject: Re: Interested in opinions about cutting the rear package tray for stereo speakers


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nice job on that project! Not a fan of the music note type covers but they aren't out in the open so its good and functional.

My 57 imperial has 3 of the oval openings so will be doing something similar when the time comes. Center will be for the rear window defroster air supply 2 outers for speakers.

Edited by 51coronet 2017-07-22 9:36 PM
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56D500boy
Posted 2017-08-02 9:26 PM (#545397 - in reply to #544641)
Subject: Re: Interested in opinions about cutting the rear package tray for stereo speakers



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Moving along. Finally got back to cutting the trim strips to size and drilling them for chrome round-headed nails.

This is the final product. There are several flaws that reflect my diminishing skill set and general old-aged clumsiness. But at least I am trying and you would be hard pressed to notice the flaws (and I won't tell you where they are);)



(DaveFs56DodgeCustomRoyalOneOffParcelShelf_1.jpg)



(DaveFs56DodgeCustomRoyalOneOffParcelShelf_2.jpg)



(DaveFs56DodgeCustomRoyalOneOffParcelShelf_3.jpg)



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Attachments DaveFs56DodgeCustomRoyalOneOffParcelShelf_1.jpg (203KB - 17 downloads)
Attachments DaveFs56DodgeCustomRoyalOneOffParcelShelf_2.jpg (102KB - 15 downloads)
Attachments DaveFs56DodgeCustomRoyalOneOffParcelShelf_3.jpg (145KB - 15 downloads)
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56D500boy
Posted 2017-09-24 9:01 PM (#549085 - in reply to #545397)
Subject: Re: Interested in opinions about cutting the rear package tray for stereo speakers



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200025
Location: Lower Mainland BC
Now that the radio is installed and working (but with only one dash speaker), I have the incentive to finally fully install (read: screw down) the parcel tray, install the speaker mounting plates and the Image Dynamics 6 x 9 speakers.

I started that today by temporarily removing the chrome speaker grills and attempting to bolt the mounting plates to the parcel tray with oval head 8-32 bolts and the female portion of 8-32 x 3/4" of aluminum Chicago bolts. I thought 1.5" oval head bolts would work but I think that I might be bottoming them out in the Chicago bolts. It was difficult to hold the Chicago bolts in place from the bottom while I screwed the 8-32 bolts down from the top. Might have to rethink or at least go to shorter 8-32 bolts.

Too tired to carry on today.

Tomorrow (supposed to rain but I can work in the garage with the door open and me sitting in the trunk).

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56D500boy
Posted 2017-09-29 1:30 PM (#549415 - in reply to #549085)
Subject: Re: Interested in opinions about cutting the rear package tray for stereo speakers



Expert

Posts: 2038
200025
Location: Lower Mainland BC
56D500boy - 2017-09-24 9:01 PM. I started that today by temporarily removing the chrome speaker grills and attempting to bolt the mounting plates to the parcel tray with oval head 8-32 bolts and the female portion of 8-32 x 3/4" of aluminum Chicago bolts. I thought 1.5" oval head bolts would work but I think that I might be bottoming them out in the Chicago bolts. It was difficult to hold the Chicago bolts in place from the bottom while I screwed the 8-32 bolts down from the top. Might have to rethink or at least go to shorter 8-32 bolts.
:)


Speakers are in and sounding fine, thank you very much.

Ended up buying 1.25" 8-32 bolts to use with my 3/4" Chicago bolts. Had to cut slots in the not slotted end of the bolt so I had something to hold the Chicago screw while I tightened the 8-32 bolt from above (me sitting in the trunk with my hand through the OE parcel tray hole tightening from above and holding from below. But before I did that, I cut a flat counter-sink pocket with an 1/2" auger bit (I didn't have a 1/2" Forstner bit) so the head of the Chicago bolt would sit flush with the bottom of the mounting plate and not interfere with the speaker.

I add some 3/8" wide thin weather stripping foam tape to the rim of the speakers and then screwed them up to the mounting plate from below with No. 8 x 3/4" wood screws (predrilled holes with a 7/32" (??) bit).

Final product is shown below. (I vacuumed out the speaker before I installed the chrome speaker cover - which didn't seem to kill much sound).

If there are any issues, I will fix them. - Just not right now.

PS: The spring on the trunk hump is the external spring off my left rear brake drum. I can't get it back on.



Edited by 56D500boy 2017-09-29 1:49 PM




(ImageDynamics100W6x9SpeakerInPlace.jpg)



(Two6x9ImageDynamics100WSpeakersInstalledIn56DodgeCustomRoyal.jpg)



Attachments
----------------
Attachments ImageDynamics100W6x9SpeakerInPlace.jpg (192KB - 12 downloads)
Attachments Two6x9ImageDynamics100WSpeakersInstalledIn56DodgeCustomRoyal.jpg (146KB - 10 downloads)
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Powerflite
Posted 2017-09-29 2:46 PM (#549419 - in reply to #535815)
Subject: Re: Interested in opinions about cutting the rear package tray for stereo speakers



Expert

Posts: 3522
20001000500
Location: So. California
Looks like that should work well. Those appear to be some massive speaker coils. Who makes them?
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56D500boy
Posted 2017-09-29 2:55 PM (#549421 - in reply to #549419)
Subject: Re: Interested in opinions about cutting the rear package tray for stereo speakers



Expert

Posts: 2038
200025
Location: Lower Mainland BC
Powerflite - 2017-09-29 2:46 PM
Looks like that should work well. Those appear to be some massive speaker coils. Who makes them?


Image Dynamics. Mine must be the ID69 listed here:

http://www.imagedynamicsusa.net/copy-of-xs-components-1


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