I have a 2016 journey 36m. I have the same issue with the backup camera, have had since I've had the coach for 4 years. I removed the Radiohead, and was able to wiggle the wiring harness going into the back of the Radiohead. The camera feed would go on and off when I wiggled the harness.. I looked at the wiring diagram to determine which wire was dedicated to the camera feed. There's not enough wire behind the camera to pull it out so that I can work on it. The best I could do was cable tie the plug to the radio as tight as I could get it. That worked for a while. I don't know if the intermittent connection is where the wire goes into the plug or if it is inside the Radiohead. I guess I'm going to have to figure out a way to take the dash apart so that I can get better access to test it out.