Mate once you have it you will never go without one again. I can reverse park right up to the car behind with ease then adjust my parking accordingly. I would be lost without the camera. Fitment under there is easy John. To run the wires though the sleeve all you do is unplug the sleeve ends from the car and door so the sleeve sits straight, then run the wire through. I taped the wire to a bit of coat hanger wire and pulled it though that way. Took no time at all.