They are all the same , nothing critical about the numbers or engineering . It eliminates RF interference , but can do little about alternator “Whine” . Not what it is for . Alternator output is 30 A or more takes a huge capacitor to filter 30 A at 12v . Like 1 farad . About 3” diameter and 8” long . Sold for custom stereo . The problem you are hearing is most likely bad capacitors in the radio which filter the 1 amp or so the radio uses . Take to radio guy or ham radio guy , replace filter capacitors , typically 1000 uF 25 v . Leave old one add new ones ( modern much smaller , Panasonic is best one) . Trying to get old big can out of board can destroy old printed circuit board .
Hope this works out for you .
Sent from my iPhone
On 7 Jun 2018, at 3:39 pm, Val Jeffers edward1108@xxxxxxxxx [Chrysler300] <Chrysler300-noreply@xxxxxxxxxxxxxxx> wrote:
Posted by: John Grady <jkg@xxxxxxxxxxxxxxxxx>
To send a message to this group, send an email to:
To unsubscribe from this group, send an email to bob@xxxxxxxxxxxxx or
go to https://groups.yahoo.com/neo/groups/all/manage/edit
For list server instructions, go to http://www.chrysler300club.com/yahoolist/inst.htm
For archives go to http://www.forwardlook.net/300-archive/search.htm#querylang