I tried installing my P3100 double din when I got it in the mail.. Hooked it up and the DVD function worked for about 30 minutes then stopped working.. I checked all of the wires and nothing was loose.. I put a DVD in every so often and sometimes it'll work but very rarely.. So I brought it to my local audio shop and they said everything is hooked up properly for it to work..

I know the switch is hooked up right because I can toggle it so I can do the picture adjustment, which is another parking brake on only feature..

Can someone give me some insight on what I'm doing wrong..