There is all kinds of room, anywhere for the install. No special tools needed either. I mounted my 8500 to the left of the rv mirror. The wire easily tucks into the headliner, then into the front left pillar down to the fuse box. As stated above, use one of the spare (open) slots that is available for the power. (its pretty obvious when you get in there) Then for ground, I’ve seen a few different locations available. I used the larger silver mounting screw on the left hand side that holds the fuse box/dash to the body of the car.