I got the mach 1000 system, sounds pretty good, but im thinking of replacing the subwoofers and going with something a little burlier. Maybe just a 500w mono into a single high quality 10in sub driver and free up some of that trunk space and give the stereo more slam.

Has anyone done this themselves? Any tips? Advice?

I know the 4 amps on the rack power the subs with 85w to each voice coil.

Anybody know which wires our of the cluster feeding those 4 amps to use for low level inputs on an aftermarket amp?

Thanks!