I just got done installing a Kenwood deck into my 04 coupe and am not getting any sound out of my speakers. I installed the deck using the Metra 7550 harness rather than the 7551 harness because I plan on switching the speakers out. Is the stock amp causing the no sound problem? I've read that the bose system has low output and I imagine that this would be the problem that i'm running into. If I swap the stock amp for an aftermarket amp, will I be able to use the stock wiring to hook up the aftermarket speakers or do I need to run all new wiring? Is there a quick fix for my problem so that I can listen to music until actually switch my speakers out?