So long, 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