lowdownearl

I recently bought a 03 Navigator with a D3 already installed. When you go to the Navi Menu setup screen it shows the parking break on at all times, so I assume the previous owner had the bypass done. I keep getting the parking break error on startup, and the dvd is then disabled while moving. I already did a reset of the unit by pressing the button on the faceplate, but no change. Any help is appreciated. Thanks