hey guys i just bought a 96 GT and the amps dont seem to be working in the mach system. its all stock but sounds like crap with ZERO bass so im guessing the two amps in the rear deck arent on theres sound from all the speakers just no bass. i want to fix this and put in my aftermarket alpine deck. i know alot of you on here suggested keeping it factory i just would rather have the alpine though. can i use the same harness suggested above for this? and what would you guys suggest in trouble shooting the amps not being on? i bought it that way and have done my own stereos before but ive never worked on the Mach 460 system and it looks like a headache. the amps seemed to be hooked up but no out of them. thanks for the help guys!