My brother just wired me a thumping system in my runner. Greatest thing ever and very satisfied. I got a 500 watt JL Amp. along with two W3 10's JL Subs. I did have one JL W7 10" but the W3's sounded better. It sounds really good not that ghetto bass, its really crisp. The rear space left is very decent. Box didnt take much room at all. But you have to give and take. Same head unit was used. (OEM JBL Navigation System)