willelumplump
10+ year member
Junior Member
so i have a 2004 pontiac grand prix and i would like to upgrade the audio in it. i've seen a few grand prix on here and wondered where should i start first? should i start out by changing the radio or the speakers? also i plan on putting dynamat in the vehicle also. so is there a good place to get it? as well as other equipment i may need or want.
