Hey Matt_88, once we made some modifications, it all worked fabulous. We had to take a picture of the tag on the tailgate wiring harness and give it to the service tech - he was able to find that part and order it. We also had to order another OEM tailgate camera to avoid taking the one out of the tailgate. We used the new harness to McGuyver the solution. The truck end of the harness was cut and used to close the connection on the truck so that dirt wouldn't damage that connection end. The camera end was used to wire the new camera and plug into the camera outlet at the tailgate end. We then (temp solution) created a holder under the steps of the NL and zip tied the camera and new harness piece (not ideal, but we wanted to get out and travel). This allowed all of the cameras to work correctly. If the cameras don't work, the navigation screen displays an error each time you use your blinker and it requires driver interaction to resume navigation.
We became habituated to unplugging the camper from the truck each night (or long stop) to resolve the camper lights from blinking every 10 seconds. This also saved some battery drain from the camper to the truck (we replaced the batteries in the camper with Lithium). Hubs is working on adding more solar as I type - we'll end up with 360 watts on the top. We added torklift stableloads to the upper and lower springs - made driving the rig a dream. We drove through some pretty good winds, no drama.
Congratulations on your new NL! We love ours - just spent 6 weeks breaking it in.