radio wire diagram 2004 clk 320
wire color i see
brown
red/blue
green/red
black/yellow
blue/white
Last edited by 9time; Feb 18, 2013 at 09:33 PM.
http://benzbits.com/w203/Audio10PinOuts.pdf
Note that you will not find pins for switch +12v or illumination - those are supplied by CAN bus signals, so for an aftermarket setup, your best bet is to get those from the cigarette lighter socket and it's light there in the center console.



