Can anyone help? My (new to me) 04 Signum has a CCR 2006 radio/CD/tape. Only the speakers on the driver's side work (and I am not sure all of those do - the big one in the door definately does). When I wind the balance over to the passenger side, absolute silence. Can anyone point me to a likely connector or other gizmo which I can test/tweak or something else I cvan do to get stereo back?