Hey people, I recently put a Lanzar opti-500X2 amp in my friends hummer and when playing the tunes pretty loud the interior lights dimmed to the bass hits. The subs are dual 10" Kaption CL's @ 2 ohms each. I was wondering if the dual stock batteries/ alternator may not be enough? I have 1/0gauge wire run to the amp. I see most people do not recommend the use of Caps anymore. Any help?