weird issue that i cant figure out my buddy was running a crunch powerzone 1400.2 he had a dealer install everything they used 5g wiring and a 100amp fuse didnt have any problems with it well just recently he upgraded to the zx 850.2 and he hooked it up 1day later he woke up his bat was dead and his cap said volt hi and he started his car and the amp goes on and about 10mins or so the amp will heat up and go into protection mode i went on kickers web sight and they say 2g and 120 amp fuse could this be the reason why his amps over heating??? need some input