If you’re an iPhone user that also happens to be shopping for a new head unit for your vehicle, you might want to check out Oxygen Audio’s new O CAR stereo which has been designed specifically for the iPhone. The O CAR features a built-in RDS-enabled AM/FM tuner, Bluetooth connectivity and a 4-channel, 55-watt amp that links to a vehicle’s factory or aftermarket speakers. The iPhone slides into a special dock that turns it into the radio’s faceplate, allowing you to control standard car stereo functions like volume and tuning, as well as browse and play your iTunes library and internet radio station apps. The O CAR also provides hands-free calling and battery charging. It has an MSRP of $299.95, which seems a bit steep, but I’d still love to try this in my 2006 Mazda 3. I could then do away with cigarette lighter chargers, FM transmitters and other connection methods since my car doesn’t have a built in AUX-in jack.