I'm selling a media cradle with an AT&T iPhone 4S 32GB. If your vehicle has the "Smartphone Integration" option, this cradle will allow you to see moves, music videos, or any media stored on the iPhone 4S. If you have your car coded, you can watch the media while you drive. I used it for my daughters on long drives.
Price is firm. Add $10 for shipping within the 48 continental states.