Have the parking aid is not installed, but can only have a positive experience, report it as I. This parking aid professionally shoring (camper vans) So in the price range you will find nothing like it And should a problem arise with the parking aid has one with Carlights a top and very competent partner. And by the way is a very detailed installation instructions and thereby a suitable Borhrer. If you have some experience this parking aid is installed and connected in less than 30 minutes.