Hi I installed a after market radio in my truck, i know what im doing ive done this 200 times in many vehicles but this has never happened. I of course used the connector for the factory wire harness to go to the stereo, hooked it all up and turned it on, and no sound, theres a little bit ofsound when the stereo is at 100! and all the speakers areworking, every wire is hooked up correctly, so I tried it with a different cd player and no difference. The truck has that anti theft crap on it and do you tink that would have anything to do with it? And what do I do to fix it? thanks, Brian

call best buy....sounds like you need a door chime module..