Hello together. I wanted to connect a Led rear-view headlight over the socket of the trailer coupling . But the Led rear-view headlight flashes or flashes only . I have built a load resistance but it is the same condition . I also tried it with a conventional light bulb and had the same result as with the Led rear-view headlight . I also plugged the Led rear-view headlight directly on the rear light where it works perfectly . But this way is very cumbersome and complicated . I hope someone can help me with knowledge and experience about this Tema . I would like to thank you in advance for your help.