Hi All: Philippe seems to be correct---1956 and 1957 only. I can find no mention of the Highway Hi-Fi in my reference material beyond those two years. For some reason, I had thought it was over a longer period. 300ly, Gil Cunningham In a message dated 6/27/2007 6:24:33 AM Eastern Daylight Time, accf-club@xxxxxxxxxxxxxxxx writes: > > I believe they were for at least the 56 and 57. Yes, only '56 and '57 cars. The HiFi plug wasn't installed on '58 and later radios. -- Philippe COURANT (Pau, France)- Webmaster des sites ACCF et C-I-F Imperial 1957 Crown convertible Buick 1996 Roadmaster wagon - American Car Club de France (ACCF) : http://www.accf.com - Chrysler Imperial France (C-I-F) : http://www.ch300imp.com ************************************** See what's free at http://www.aol.com. [Non-text portions of this message have been removed] 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/