[wcs2229]

Originally Posted by Bcborn59

https://f48.bimmerpost.com/forums/sh....php?t=1177240

Good info here, there must be a European version of this document showing the basic wiring diagram (no amp)

I did not find wiring diagram for Base audio, but I think the 2018 Speakers Base 1.pdf is for the Base audio.

There is only 1 speaker in each door for Base audio. I believe the diagram shows "OR symbol" on the rear speakers.