For the 2007 model year, the Lexus GX 470 gets an upgraded (optional) navigation system that adds voice activation, an auxiliary input jack for a digital music player, and the (also optional) Mark Levinson premium audio system now plays DVDs as well as other digital formats. Also, when the vehicle’s transmission is in “Park,” the Levinson system can treat owners to a DVD movie on the navigation system screen. Lastly, the (optional) rear-seat entertainment system now comes with a larger, 9-inch screen.