ROLAND: Here is what I did as a single person. Cell phones do people like me little good backing up. So, I installed a 4cam system (in addition to the factory backup camera) on my 98 Patriot. It took me 4 days (working alone) because I did a very professional installation and you cannot tell this was not on the coach when it came from the factory. But, it took me nearly a week to do so. Lots of holes to drill, routing decisions, panels to remove, etc. I took my time installing to get a really professional job.
Now, I love it both backing up and on the highway. Being able to see clearly 5 lanes wide behind you is wonderful. "If you see a car, then don't change lanes until you figure out how far back" is my rule. I especially like the two rear cameras: The factory install mainly looks down at the toad and my new one looks up and over the toad. I run both cameras when driving or backing. At a campground, if you are backing into low branch tree infested area, then I also tilt the factory side mirrors to show the roof lines. All of this really works for me. No bruises yet.
Larry Fritz