I know this doesn't relate to any good cars, but i have a friend with a 99 cavalier who is trying to install a 1200 watt MTX 4-Channel Amplifier (TC4004), with 2 MTX 10" Car Subwoofer (MZS1004) (min 150, max output 300 watt). Anyone happen to know if that pos cavalier's alternator and battery are strong enough to power that system? They say they're getting problems when they turn it up, the system starts to cut out, and that's my frist though..not enough juice