I installed a rear view camera on the back of my toyhauler. It works really good. Make sure you get a ccd camera instead of the cmos. The monitor I got has 2 inputs so I ended up buying another camera for the back of my truck and I can switch from either one. So when I'm hooking up I hit video 1 and it does the camera on my truck, and once I'm hooked up I hit video 2 and it goes to the camera on the toyhauler. A guy on EBAY is the best place I have found. His kits are awesome. He has set-ups for tractor trailers also. I have about $350 in it total, so I figure if it saves me from one accident, it's paid for itself. It is sweet hooking up the different trailers now. You watch the ball go right to the tongue of the trailer instead of guessing and moving over an inch, or back an inch.