According to my owners manual, I should be able to watch movies on the navigation system while sitting still. Messing around the other day I popped a DVD into the player and got only sound, no video. The car is in park, not running as the instructions dictate, but no matter what I tried, no video. It's not really that important to me, more of a novelty, but living in Washington state, there are times on the ferry rides that would pass more quickly with the occasional video. Any suggestions?