Hi,
I am also looking for a wiring diagram.
Got water in the boot, comes in when car parked with front higher than back, but only happens on driver side for some strange reason.
Anyway the water wrecked my amp and I didn't want to pay for a brand new one and couldn't find a z4 one cheap so in the end went for an X3 amp because I was told they were identical.
Turns out they aren't, the Z4 has 5 outputs for the 10 speakers and the X3 amp has only 3 outputs, so my passenger side door speakers don't work, although the sub behind passenger does.
So my plan is to bridge the speaker amp output wires between the driver side door and the passenger side door to get them working. I'm guessing the speakers will only have half the power available but I don't listen to the radio at full blast anyway so that's okay.
Please can someone tell me which wires are for what so that I can cross them to get all speakers working?
Thanks.