After having been annoyed by the fact that I don’t have a CC in my luxury study that was a decade ago, I wanted to see if I have already installed the wire harness with plugs for retrofitting. What do I discover in the deep, dark driver’s footroom under the dashboard??? Tataaa: -the relay for the light bulb monitoring and also the relay for the light bulb monitoring of the trailer. To get to the vulture none of the little helpers is coming? Wipe water was already empty, -no message. Plugs pulled off from the taillight, -no message. Invitation to brake light check, -nothing! I’ve already checked all fuses. If someone from you has already experienced the same, or maybe has an idea, then get out of it. But I’m afraid my FOH will have to go with Tech2 at the next inspection! (yes, the Dotti is screwing now… )