Sounds like a good idea. I've added one to the back of my motor home. Great for backing up and we can keep an eye on the boat while driving, since we usually pack some thing in it as well.
Installation took some effort as I wanted all the wiring hidden and had some walls and bulkheads to go through. I also put it on a switch so I could turn it on and off independent up the tranmission position. The install instructions wanted the trigger wire hooked to the neutral safety switch to perform as solely a back up camera.
