FACTORY BACKUP CAMERAS
Even though most people remove or drop their tailgate once their new camper is installed, you don’t have to give up your backup camera. If you have a factory backup camera in your truck’s tailgate, you can order that exact camera from a company called Camera Source (camerasource.com).  Just call them and give them your make, model & year of your truck and they will ship you the exact factory camera for your truck and it plugs right into your factory monitoring system.  It can be mounted on the bumper of your truck or the rear of the camper.  Remember that it should be mounted as close to center as possible in the rear of your truck so that the camera images will match the grid pattern on your video system.