i say rims or system. Seats are cool n all but i think sounds and rims are little more important cuz unless your doin some serious racing or just want the feel, seats are more for just show. granted rims are show too (and i guess sounds are too if u think about it, but thats different) like rims i think are way up there on the list cuz you can see rims from faaaarrr away and like it makes such a big difference when you got rims you know? i dunno just my opinion
but that system does sound nice 1st mp3