Gauge 4 isn't enough? The guys on the subwoofer forums all said to get 4 gauge kit.
For the capacitor, why is it useless? My lights are still dimming with it but it's a little bit better with it. I thought a 10 or 20 farad capacitor would be the solution. A battery would take a little bit more space in the trunk, and I'm not sure I can plug it in directly to my car's battery without doing some electrical management.
Thank you.Having larger wire is always better... but I'd stay away from the car audio wire.. do yourself a favour and get some 2awg or larger welding wire.. it will be cheaper and more durable..
Keep the 1F can, but don't bother with the 10Farad+ carbon capacitors... they really are useless because of their high internal ESR and ESL...