hey guys i currently have a 2002 corolla 1ZZFE hatch. i have recently upgraded the in car audio with dvd player and screen, 650watt rms alpine monoblock amp, jvc sub. when i turn up the bass levels in the car, all of the electrics such as the headlights, dash lights etc pulses to the beat of the music. I understand its a battery problem atm. i want to upgrade the battery to higher CCA battery without spending like $300 on an optima one. i was thinking about buying a 600cca spec supercharge battery from autobarn. I was wondering if anyone has done this with their corolla, and the way they got it to sit their due to the factory battery mounts is small. any advice would be appreciated. thanks Chris