#12800, "RE: How to make dvd player work when car is moving" In response to In response to 5
Most of the time when its just a standard dvd player you ground the parking brake cable and put a toggle switch on it. Best Buy installed it like that because its against the law to have it playing when driving where the driver can see it. If you have something that has a gyroscope in it you will not be able to just ground the parking brake. It can be more complicated or very simple. Like ^ said, just google some bypass codes.