AppRadio. Hello, AppRadio 2. Here at CES 2012, Pioneer was on-hand to showcase its newest smartphone powered in-vehicle audio system. The latest iteration touts the same functionality as the original, but adds compatibility for many of the latest Android smartphones equipped with either the Mobile High Definition Link (MHL) or a micro HDMI connection. It's boasting a 7-inch (800 x 480) capacitive touchscreen, built-in Bluetooth for hands-free calling, an input for an optional vehicle-mounted rear facing back-up camera, an input for interfacing with the vehicle's steering wheel controls and two sets of pre-amp outputs for connection to external amplifiers.The new guy will be shipping in April for $499, and if you're looking to keep steady with the original, that one will continue to be available for $399. In related news, Pioneer also revealed a boatload of new in-car head units, all of which are painstakingly detailed in the source links below.