buy a aftermarket radio from bestbuy or where ever. just make sure its new. cause it will give directions on how to hook the wires up correctly.

buy the book from autozone to know the correct wires your hooking it up to. i have a 98 gtp and i had to hook up 2 aftermarket radios. 1st one got stolen.

the only hard part of hooking up the subs and amp is basically doing the wireing to the radio