1982 Mercedes 240D 123
1982 Mercedes-Benz 240D
Crutchfield Customer Review (What's this?)
This kit has an adapter that plugs into the cigarette lighter connection to use as power/ground. THE MERCEDES +/ - WIRES FOR THE LIGHTER ARE REVERSED FROM THE FACTORY, BLACK IS POSITIVE. I checked this with a multimeter. Solder the RED head unit wire to the BLACK adapter wire. Still maintains the cigarette lighter function. Worked Well. Also has 4 speaker connections that match the factory harness. Work well also. FYI. Mercedes 123 chassis. The old factory head unit is "2-channel" that runs to the front/rear fader in the shift console, THEN out to the 4 speakers. The R and L speakers have a common ground, in the harness, going to that fader. Snip the wires at the fader, feed/pull them back up to the head unit location. Cut the cover off and snip the R/L common grounds loose. Use a flashlight battery to "static" find the respective +/- speakers/wires. (I THINK green and green/ black were left positives and red and red/black were right positives). Solder up your new "4-channel" head unit. My team of lawyers says to tell ya'll to "use this info at your own risk".
Pros: The connections were correct.
Cons: The speaker wires were already in my car. Maybe from a previous kit...