would the scosche FDK10B wiring harness work with a 2000 mustang with premium sound not mach...im having a huge amount of troubole finding the right harness

 

premium soundn normally is the same as the mach.

 

i thinkj i figured out what to do....i ripped out the cd and radio. i unplugged a harness that had two 6 pin connectors for linking the cd to radio and a power to the radio and i think amp... i put the radio back in and plugged in the remaining connectors which are a 8 pin square which i think are speakers and a flat gray piece which i think is the power. The radio is extremely low and when the car is on it crackles a lilttle but i think the amp is off now. I have a pioneer 6700 which is 50Wx4 channels and i think it means it has a built in amp. The only harness i need to the 8 pin square and flat gray one i believe and if im wrong please tell me.
thanks