My wife has an '07 Charger with a factory CD player. I want to get her a backup camera and I want the screen to be built into the dash, BUT she doesn't need/want anything fancier* than her stock radio. She wouldn't even mind giving up her CD player, if necessary. So... what are my options with these guidelines: -Screen fits in the dash. -Retains use of the radio without installing an amplifier or aftermarket speakers. -Isn't total overkill for the simple task of controlling the radio and showing backup camera footage. Thanks sooo much! *Obviously anything with a screen will be "fancier", but she doesn't care about extra features or better sound.