Lazy Daze Owners' Group

Hi Geoff;  That Furrion S+  evidently just uses that pigtail lead for power, and when to 'turn on' enable. The Etrailer person mentioned the marker lights as a source.  The RF link at 2.4 Ghz transfers the actual video to the monitor in front. Both have short antennas, and they mention the range limits. 200-400' would work even if the camera(s) were mounted on a trailer, etc.  So water proofness shouldn't be much of an issue. Amazon.com: Furrion 2021124375 Vision S+ RV Backup Camera System - 5"...    If I were to get a system, I would want to be able to stream video to a phone, especially as a security outside monitor at night. I don't think that transfer by 'SD card'  would be feasible. But then you could just move the dash monitor around at night. (need a power cord)     Likely you can leave the camera on 24/7 while in the rig.
     I do have the LD factory installed rear view camera. (1999)  Poor resolution, black and white with no audio.  But the wiring is inside the compartment floor that your MidBath also should have. This is at the very back above the window. The floor had been removed, and staples replaced with screws. So you can do that also. A small hole right in the center for the camera power. (I put in a light fixture, so I ran that wire alongside the video harness that LD put in), into the side compartment, and on. You could put in a switch to enable it for security purposes. I would use the reverse light to enable it, or the accessory with the engine running, etc.    RonB