Does anyone know how to identifiy a bad stock amplifier. I did some searching and found a post that mentioned testing the amp seperartley but could't get any info on to HOW to do that. Only reason i ask is I'm at a some what common situation wear the stereo won't turn on. I had the problem before but simply switched the busniess CD to another. Problem happened again so i got a dynavin and now the problem has happened AGAIN so the question is what is causing this?Can the amp have anything to do with it?