A:AnswerYou have to be in park, with the parking brake on in order to enable DVD play back. They do this because it's considered a distraction to your driving.
A:AnswerEasy fix. I just tapped off the ground and ran that to a Toggle. Run the parking brake wire to the other tab on the toggle.
When the message comes up. hit the switch, then switch it back. now you can watch while driving. yes you gotta do it everytime you start the car but, better to spend $2 for a toggle switch than $30 for the relay
