This is a very valuable addition to older cars. My wife and I love our front camera. The install is not really difficult it is probably more a case of being intimidated if you are not accustomed to prying open dash panels and poking around. My service center noticed the switch box addition and did some tongue clucking about any modifications. I will probably remove the camera if I trade my S back to Tesla. They will not regard it as a valuable addition. It sure would be considered a valuable addition if I sell the car privately.