Does anyone have any information on the wiring of the radio and the fader switch, other than the original install sheet? I am trying to replace my current radio (BMW anti-theft in 88 735il) and I have the install sheet, that tells what is where, but it doesnt explain what half of ANY wire is which (+/-).
Also, does anyone here know which wire on the amp does what on both input and output so that I can bypass it?