Well I did all thew stuff "Side Show" said. and that worked for the volume problem, and I have done the sonic electronix 40 hertz amp tune. But if theres anything more I should do let me know! Put some links or whatever! ha and i dont have the money to do the big three right now, but hopefully soon! And if someone could link me to a really good and like descriptive video or sight on how to do the big three. I have an idea, but need some more info!
the big three in simplest form; one run of 0 gauge wire from the + of your alt. to the battery. one run of 0g from the - of the battery to the vehicle's frame or chassis. and last, one run of 0g from the - of the battery to the engine block