im not sure how to fix your problem. all i can say is if you go aftermarket there are wiring kits to be able to use your steering controls (without it you will lose them). i have a pioneer DEH-33HD that has high def radio and the reception is great. but since it has a usb port i just hook my ipod into it and i can control that through the radio which is great. i would just go aftermarket if i were you theres so much good stuff out there.