Remove aftermarket amplifier and connect OEM
I had two Alpine aftermarket amplifiers installed in my #46 M3 (one for voice and 1 for bass as recommended by retailer) and while I gained volume, the balance in the overall sound doesn't sound as balanced as before. The speakers seem to have primarily voice and tweeter but it seems to have lost the bass throughout, now being handled by a sub-woofer and I'm now considering to remove amps and revert to the original sound system (Harman Kardon)
Does anybody have the amplifier diagram to properly install original amplifier?
Your help is greatly appreciated.
Last edited by M3 rebel; 12-30-2013 at 03:42 PM.