i have a wagon with some room. i have 2 10" polk mo mo's running off a 250 rms at 2 ohms from 20 to 250 hz( got from friend fore allmost free), and thinking of getting 2 15"s. the 10's under the two front seats and the 15's in the back. my question is 15's or 12's and what kind. i have about 500 to spend on the subs but would be great not to spend it all. i listen to hip hop and also punk.