The only problem I had was wiring the cam in the hatch. Well, it wasn't really a problem, but it was a pain in the butt getting the cable through the hatch and up through the grommets and into the head liner. There is an existing harness that is ran for the rear wiper pump, if you pull that back out about 18" and then tape the cable to it, you can pull it through fairly easily. My buddy did the programming for the steering wheel control and from what I saw, that was a piece of cake. He also bypassed it, which is also a piece of cake. Install took about 2 hours total.