Yea, plugging into the NAV unit is the easy part. Installing the camera on the rear hatch door and running the wire into the truck is where the real work is. I installed the camera to the left of the Toyota symbol on the rear hatch door behind the plastic bezel. Finding the exact angle and location in order to see the entire rear bumper was real tricky, I suggest using tape to locate the camera and then marking it on the door. The bezel also needs to be cut to allow the camera to stick out below it, it is very tight and everytime I tried to put the bezel back on, the camera would tilt down, there is a small allowance for the camera to stick out and stay at the right angle. Once that is all set, run the wire in the door and out the top of the door. There is a grommet on the door. If you are looking at the truck from the back, with the rear hatch open, it will be on the upper right of the door right near where the hinges are. Its a circle with a plastic cover, I removed the cover and fished a wire hanger down the right side of the door, then I hooked the end of the hanger around the end of the camera wire and fished it through. Then ran the wire along the weather stripping and into the truck, and then down the side tucking the wire under the plastic and under the door sills all the way to the NAV. When all was said and done, it probably took me 2-3 hours, I went slow and was very carefull when cutting the plastic Bezel. If you have experience with this it should not take you more than 2 hours.