I just purchased an used kicker 350.4 amp and it played but went out after a certain volume. So I just didnt turn it up cuz i need i had to mu ch running to one channel on it. Before I could get to my destination the amp started flashing red and never stopped. I unhooked the amp and hooked it back up same problem. I just hooked up power, remote, and ground. Same problem. So now im using my old amp. I really would like to fix this amp so if anyone know the problem please tell me and a way I can fix it and tools I need to fix it?