866-938-9495 The Navigation package, available on all but the Prius One and Two, includes a voice-activated touchscreen navigation system with real-time traffic, a rearview camera, a four-CD changer (replacing the six-slot), an iPodUSB audio interface and Bluetooth music streaming. The Solar Roof package can be added to the Navigation package and includes a sunroof with a solar-powered ventilation system that cools the car when parked, and remote-activated air-conditioning for cooling the cabin before you enter.