I cannot believe that I am the only one that has ever experienced this. I purchase a use 2003 Damon Ultrasport with less than 50k on the odometer. Everything works great except the back up camera system. I replace the monitor (purchased from RV cams) and have been working with RV cams out of Biloxi, MS. The have been great, except I still cannot get it to work. It seems the system does not want to operate in my RV. I have gone so far as connect it directly with a short coupled camera to the battery, confirmed the voltage to the unit at 13 VDC, and get no signal or only a snow storm with a focal length of about 1'. I can take the monitor, camera and alligator clips and attach it to my pick-up and it works fine. RV cams has checked the camera, and it is fine. As I stated previously. all 12 VDC systems in the RV work great. Been fighting this since April. Any ideas?