[fmorelli]

So I got a question. I've asked this on the F30 board as well. My bimmertech amp came with an F30 file - Bav Stg 1 w/Ghost subs (these things are all over the F30 forum) as a start point. Here's what confuses me. The E89 Z4 676HIFI is a 9-channel system, right? 2 door, 2 footwell, 2 rear shoulder, 2 rear woofers, 1 front center. The bimmertech is 8-channel (as is the F30 sound system I believe).

What am I missing? What is the topology of our car's sound system? I may need to go look at the ETK for the car. I am told the bimmertech is a plug-n-play solution, but I don't get the channel disconnect.

Thanks,

Filippo