I have had bad experiences at Freeman's and Sound on Wheels in Rock Hill. Norton's car stereo is the best! They are on Cherry Road and if you go tell them Robert w/ the Supra sent ya, hehe. I also use Velocity Concepts in Pineville, but I know a lot of yall do too. Anyway, it took me a few bad experiences to find these shops, so I hope you use them or some better ones somewhere.