I just recently installed a 1300nex in my 06 Expedition. I previously had a Jensen double din dvd nav which I had a reverse camera connected too and it worked fine. However, with the Pioneer, I cant get it to work properly. It actually turns the camera on when I put it in park or drive but not in reverse. It also shows just a black screen. Ive tried different wirings and settings but nothing changed. Is this something that is common among these units? Thanks