Originally Posted by THE TECH
Well, I removed the lower, rear driver's side seat cushion and there are no wires there except for the two that go to the fuel pump I assume. Do you know if this black wire we are chasing is in the loom that is under the same side's side bolster? Is there only one thin, black wire to look for?
The Rust Brown part in the photo is the cushion/bolster:
Remove the C-pillar trim and then the cushion/bolster (in that order):
You should see a harness/bunch of wires either behind the bolster or the C-pillar trim. One of those wires should be a thin black wire
, no other markings... that is the remote turn on.
I think that only removing the C-pillar trim could be enough to find the wire as it has to go thru that route to get to the antenna amplifier mounted in the back of the roof. Try that...
-2012 E92 M3 Jerez Black/Rust Brown, M-DCT: September ED
-2008 E90 M3 Melbourne Red/Bamboo, 6MT: Gone
-2007 MK5 GTI United Grey/Grey, DSG: Gone
-2004 E46 M3 Carbon Black/Cinnamon, 6MT: Gone
-2002 E46 330i Orient Blue/Natural Brown, 5MT: Gone