My capacitor for my sound system broke so instead of purchasing a new one I'm sure there's another way to bypass the "dimming" problem when the bass hits. I'm running a Rockford 500RMS amp to a single 12" sub, nothing crazy. Since my Cap dies I'm starting to get the "dimming" problem. I remember reading somewhere that if you ground/wire the battery/alternator/or amp properly(or other engine conponents) you can get rid of most of the dimming problem. I have about 30ft of 6gage wires laying. Guess I could use that.

How do I do the wiring/grounding to get the dimming problem out as much as possible?

 

There is a sticky above to answer all your questions. And 4ga would be better.