Roland- I have done the very same thing you are attempting. I was using an ETR from an 86 Fifth Ave which had two connectors on the back...each with seven pins if I recall corectly. The problem is speaker grounding; the later model ETR's had separate ground wires for each speaker. I bought an interface from Crutchfield- a PacAudio OEM-2 which can bridge lots of interface problems. It worked fine but I wasn't happy with the ETR sound quality. My Imperial now has a Pioneer large face radio with new speaker wires run along side the old ones to new speakers. I didn't cut any of the original wiring so I can revert if I want to but the sound quality is so good with the new system I don't think I ever will. If you're interested in the OEM-2 interface contact me directly. Phil Brust Jefferson GA 73 & 82 Imperial ----------------- http://www.imperialclub.com ----------------- This message was sent to you by the Imperial Mailing List. Please reply to mailing-list@xxxxxxxxxxxxxxxx and your response will be shared with everyone. Private messages (and attachments) for the Administrators should be sent to webmaster@xxxxxxxxxxxxxxxx To UN-SUBSCRIBE, go to http://imperialclub.com/unsubscribe.htm