Ok after having lived with a 57 New Yorker back in 69 which lead me to getting my 300-C in 70, I do believe that NO REAR AMP for radios was even thought of back then, Starting in 57 I think the radio manufacturer started using a TRANSISTOR as the final amp part of the radio. It was strong enough to drive a single front speaker and a single rear speaker. Maybe you are seeing something that was not originally there but drilled or added later. In the 60's for a while reverb units were popular add-ons by younger drivers looking for a bit more realism to the sounds To send a message to this group, send an email to: Chrysler300@xxxxxxxxxxxxxxx For list server instructions, go to http://www.chrysler300club.com/yahoolist/inst.htm For archives go to http://www.forwardlook.net/300-archive/ Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Chrysler300/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/Chrysler300/join (Yahoo! ID required) <*> To change settings via email: mailto:Chrysler300-digest@xxxxxxxxxxxxxxx mailto:Chrysler300-fullfeatured@xxxxxxxxxxxxxxx <*> To unsubscribe from this group, send an email to: Chrysler300-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/