Aftermarket Soundsystems in BMW's
Hey, I just got me a 2001 BMW 740i. I am in the process stripping it down. I'm gonna convert it to an M7. I know BMW never made an M7 but if they did, it would be like what I am doing. I found a company that makes bumpers using the M3 and M5 styling. I am putting the V-12 engine from the new 760Li and an SMG transmission. The rest, I am using the M series trim parts here and there.
Well, what I am getting to is my soundsystem. I want to use the Nav system from the M5 but I want nothing to do with the stock BMW speakers. I have some JL speakers, subs and amps on order. I also have a tight custom sub enclosure for the trunk. Is there a way that I can hook up my JL amps directly to the BMW headunit through RCA cables without going through the bull shit hastle of using converters from the BMW apm in the trunk?