I just got my 1992 300SE out of storage. Everything seems to be working ok until I tried to use the speaker fader rotary switch in the center console. It fades the speakers from front to back. Anyway, as soon as I rotated the switch toward the rear speakers I got this loud, obnoxious, constant noise. When I rotated the switch back to the center position, it goes away. All speakers work fine. Any ideas as to why this is happening? I had the BOSE amp rebuilt last year so I think I'm ok there. It does it in all modes (radio, cassette, and CD changer).
Vehicle: 2000 CL500 ruby red / AMG bodykit - my baby - Moto Guzzi Griso 1100 / Black -my brute
Location: on board
Posts: 187
Try some anti-static switch cleaner on it like Ambersil ( not too much ) as these multi direction switch can suffer from oxidization if not in regular use , ps I also get I got this loud, obnoxious, constant noise when I tune into country and western stations on my radio
mine does not work at all?? I can't switch the speakers to the rear or to the front because I turn the little wheel but nothing happens. Any idea how to fix that problem??
Not to hijack the threat, but 
Linear Mode
