Partial success: access to rear speakers -- HELP!

[zeroaltitude]

In the ongoing saga of my attempts to get a high level input amp hacked into the back of my 135i coupe (USA) with standard audio (BMW Professional):

Help from headlights, Nolz and others here got me this far. I have removed the 'airbag' tab and removed the right, rear panel through which the wires run. Here is my problem:

There are lots of wires. Which ones are the rear speaker wires? In particular, which ones are the right rear speaker wires? I see a bajillion wires, some of which seem to end up in the TCU. Others I suspect must run to the trunk (boot) light, which I obviously do not want to disrupt.

Does anyone know the speaker wire coloring for the 135i coupe (USA) standard audio system (6 speakers -- called 'bmw professional' in the US)?

This is the very last piece of the puzzle! I am standing by with T-taps, amps and subs! Thank you very much in advance,

Eddie

[Numb3rs]

Originally Posted by zeroaltitude

In the ongoing saga of my attempts to get a high level input amp hacked into the back of my 135i coupe (USA) with standard audio (BMW Professional):

Help from headlights, Nolz and others here got me this far. I have removed the 'airbag' tab and removed the right, rear panel through which the wires run. Here is my problem:

There are lots of wires. Which ones are the rear speaker wires? In particular, which ones are the right rear speaker wires? I see a bajillion wires, some of which seem to end up in the TCU. Others I suspect must run to the trunk (boot) light, which I obviously do not want to disrupt.

Does anyone know the speaker wire coloring for the 135i coupe (USA) standard audio system (6 speakers -- called 'bmw professional' in the US)?

This is the very last piece of the puzzle! I am standing by with T-taps, amps and subs! Thank you very much in advance,

Eddie

Your post is rather confusing...! WHERE are you trying to pick up those speakers wires from..? The current amp or the head unit?

BTW, there are no 6-speaker 135i in the US, they all have 10 speakers.

[Bye Bye GTI]

Here is a great post from Bimmerfest that shows the speaker wire colors and their corrosponding inputs.

http://www.bimmerfest.com/forums/sho...d.php?t=256559

It also shows where to access them in the car. From what i read the 3 series has the same audio systems as the 1 so hopefully it is in the same location. Let me know as i plan on doing the same upgrade when my car arrives in a few weeks.

[TwinturboBMW07]

I just worked on a 325i with all new speakers so I might be of some assistance PM if you have any questions