Moin Together one must have studied to animate the interior light to light at the Phaeton when opening the door? Switch (Fzg. with open door) in the roof unit is pressed/lights yellow. Does this actually stay on after ignition change? When I open the door does not go on anything. When I press the switch next to it it goes on…. Is there any signal from the door or what can it be? mfg Günni