[bergerking]

Started building an M3 E91 a few years back then put it on the back burner. Now I'm putting stuff back together and ran into issues. The E91 is a 2012 iDrive with Harman Kardon stereo and the M3 parts car was a 2011 with individual speakers. I went to put the door panels on and obviously the wiring is different due to the crossover. From my understanding, I can't even get these individual speakers to function even if I splice these wires, what do you think my next best option is? I no longer have the original E91 door panels nor the M3 door wiring..

[ctuna]

Crossover wiring is really simple when you only have one channel feeding the door , assuming the crossover's are in the doors. . There are Jehnert Door panels if you want to go crazy with speaker size.

https://www.bimmerfest.com/threads/e...n-752.1275694/

One of the links that came up above with a BMW 752 system search.

[david in germany]

The individual audio speakers will plug right in and play fine. The door wire plugs into the speaker and the tweeter plugs into the connector on the harness.