well I wanted to install the PC on my E31, I just want to avoid the previous mistakes I did in my E34, so I wonder if there is a good path to pass the wires to the front in the E31? I suppose there would be some hidden places easy to pass the wires in.

I will use the OEM amplifier as a crossover like many guys did, this will save me hell of connections and speaker mess. also the OEM speakers are just fine for the front/rear system of the 5.1.

the only thing is to install the subwoofers and the center speaker.

Luckily I was able to install the center speakers in the center vents in a nice design

see the pics below:





I tested the sound with a bandpass cross over and they sound excellent. as the duct makes a good baffle for those speakers.

I just need to pass 3 wires now: the VGA cable to the touch screen, USB cable to the touch screen function also with the Hub for any USB usage and the center speaker wire.

this is all the help I need for now.

here are some other pics of the system that I'll install.