Car Audio Battery Replacement
 

Hey guys, So I installed a 1000W JL Amp to power one 12" JL W6 and I am having tail light dimming issues on heavy bass notes. I tired installing a capacitor but it didn't help much. I'm going to be doing the Big 3 soon and upgrade the battery. Does anyone know of an aftermarket car audio battery that will fit in the stock location? Thanks for the help!