Finally! I got the output of MotionX GPS Drive to display on my Pioneer AVIC-X920BT. I had to go to: Home screen>Goto Settings > Goto System Settings>Switch AV1 to Video. Then I selected the AV 1 LInk icon on the left of the display and presto.. (MotionX was running on my iPhone 4S). However... No joy listening to Music while in this mode. I tried press play music on the MotionX interface, but it just presented me with a list of songs, I selected some, pressed done, but nothing. Also no Phone while in this mode. I had to go back to the AV Source and Select iPod but then I loose the MotionX display and turn by turn voice.