I have a factory infinity system in my truck I replaced the negative terminal on my battery and when I got everything hooked back up my radio came on but no sound from my speakers I had sound before but now nothing. I've looked at every possible thing except the amp I have an aftermarket pioneer head unit with an interface on it to make it work with the factory infinity amp. I replaced the interface thinking it went bad but that wasn't it I also unhooked each front door speaker separately and still nothing so now I'm assuming something happen to the factory infinity amp does anybody know of a bypass I can purchase for the 06 I've seen them go up to an 05 and stop I don't know if that will work any help would be greatly appreciated I've been without a stereo for a month and it's driving me crazy and I'd rather not start rewiring the truck.