A star there that was found after installation, that the station is not broadcasting, and thus the whole device useless and the installation was in vain. The device has been returned. Warning: The installation is considerably more expensive than expected. The positioning of the transmitter and to lay the lines (from the camera to the transmitter or by the power supply to the transmitter) must be in accordance with the installation instructions are only in the vehicle (in my caravan). Thus, a giute choice to meet, how and where the lines can be installed. In my case, through holes in the rear panel behind the rear lights. Perform the cable through the casing and lead in cable ducts made of plastic on floor vents, and then konnektieren this caravan. A measuring instrument was erforderlch to find the live cables of the rear light (power source of my choice) in the colorful cable All kinds in the tail light and connect to. Well, unfortunately, nothing happened. I have given up, as even an added solid electrician could only confirm: "the station has no function" ...