Really....I might have to try something like that, I did finally get the power to the thing with the 1/0, 2 runs of that to the front and back battery and 2 jumpers between the two batts up front. I still need the ALt. but this helped immensely, no way to test it right now but it got louder for sure and shakes the truck more. If I had to guess, at least a DB, so its moving in the right direction. I am considering a blow through right now though, getting sick of the HUGE box in the back seat!