ufokillerz

Does anyone have a wiring diagram for a 05+ w203? I specifically have a 2006 c280. Been trying to install a D3 all night with a VW03B harness and cannot get it to power up. Thanks

SUNILP

there is no switched power behind the stock radio. You will have to get it from the cig lighter. Also, if you have H/K sound, then you will have to run speaker wires from the d3 to the rear right of the car where the amp is located.

ufokillerz

Thanks that is what i figured, would you happen to know if the VM03B works at it should for my car? I believe that i only have a stock radio/cd unit, no h/k here.

ufokillerz

also should i cut the acc+ wire that i have wired to the harness? and just wire it straight from acc+ from cigarette into the pioneer harness? i'm not sure if i should keep the wire intact between the harnesses and just splice in, thanks

blown93lx

bumpnzx3

i've read that if you switch the '12v' and '12v switched' leads between the VW03b and the aftermarket radio harness- that will fix the problem w/o having to tap into the cig lighter. true?

bumpnzx3

nevermind- looks like the 05+ do not need to the wires switched on the vw03b, just the 04-

ChristianJan

Bringin back an old thread, but I need to know which wires are the fiber optics to the amp and which are the speaker wires. If anyone can help me that would be appreciated.

GiulioTJ

HI there, I have a 2001 c320 and I have different wire colours on the 12v iso plug.
as you can see there is a yellow black and a green black and a black cable in smaller size.....
what do you think?

what2be

You just thought you were bringing back a old thread... now im the king of old threads.. Anyway, did you ever figure this out? I have the same question. 2007 C230... MF2731 radio with changer in glovebox. which color fiber connector goes where on back of unit.