The wire code is on the power connector

Red = contant 12v
black/yell = switched 12v
gray = illumination 12v
Brown= ground

1/4" spade Blue+power antenna +12v

the speaker plugs (2 conductor) go to the fader control input
you have to bypass the fader in order to utilize the full power of your head unit. You should be able to find the two front speaker wires behind the radio, the rear wires are going to be found at the fader control. I usually use the ground wires from the plugs at the back of the radio and run tthe two positives down to the fader and locate the rear + wires and attach to the there.

Good luck!


Scott

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The Mercedes Specialists Since 1986