I just went and ordered all the components for a stereo upgrade that Cris had listed in his "sticky" except the head unit. Don't know why, I like the looks of it (and don't really understand all the "bluetooth" stuff or any of the other updates either. So, I've had the Jeep for several months now and had never listened to the radio. Too busy listening for squeaks and rattles. Anyway, it works for like 1-2 seconds and then it sounds like every speaker is blown. I think this is the sub amp kicking on. So I am hoping to keep the head. 50-50 if the head is the issue or the sub speaker/amp is the issue. When replacing all the speakers to the original head do I need the amp I bought? Or will replacing the sub fix the noise (assuming the head is good) or is the sub have it's own separate amp from the factory that should be changed out? I read all 8 pages of the sticky and didnt find the answer there. Thanks guys!