Can you tell us where in the coach the loose connection was located?
We were near the end of our 180 mile trip today when the rear view monitor became very dim and then turned completely blue for a short time. Then the dim image reappeared. Sounds something like what you experienced.
I haven't had time to start looking for the problem and we plan to be on our way again early tomorrow (Sunday) and hope you can help me locate a loose connection.
All I know is that William at the RV place just pulled all the wiring out from the camera and taped all the connections so that if we hid some rough road we shouldn't have any problems with coming undone. Their was one connection that was loose. He also change the channel wave to AV-2, whatever that means. It is working fine now. He also lowered the TV and did the connections there also.
Hope this helps. It is something I wouldn't try to do myself. Leaving it up to the RV people. Have a safe trip.....