I'm having some slight electrical problems that show up when I jack my bass up, no problems when I want a nice little thump to my music. I've been told to get a cap, which doesn't provide extra power but just streamlines the power. Whereas a second battery will give it more power. Do I need to do the big 3 upgrade before a second battery installation? Does my A6 already have a high ouptut alternator, which means I don't need the big 3 upgrade? Does the second batt have to be the same specs as the factory one, can the specs be higher than factory batt specs or can the second batt specs be lower.
CAR: 2006 Audi A6 3.2L Quattro w/ Bose/DVD Navigation
AMP: NVX 1200watt RMS JAD 1200.1
SUB: NVX VSW124 400-600 RMS (its wired to pull 600 watts of RMS, just one tho)