I just got my car back from the install. I put a Kenwood deck Rockford Fosgate 6.5in in back and Pioneer 4.6in up front. Damn It sounds so tight. The fosgates have so much bass the mirrors shake. It's awesome. Only one probally when it's real loud the front speakers sound all distorted. I think im going rewire the factory amp because it is only going to the back speakers. Please can you tell me if that would fix the problem or do I have crappy speakers.