Hello, I have installed a new car radio in my Seat Leon (EZ 02/2005, 1.6L petrol, engine code BCB). It works perfectly in the stand – but as soon as I leave, the message “Begin reverse” appears on the display, as if I were inserting the reverse gear. This turns the radio into the return mode, and I can hardly use it while driving. I don’t think it’s on the radio itself, but rather on an electrical signal that comes wrongly from the vehicle. t. The radio is completely new. I attach two pictures to you: Error message on the radio during the journey Photo of the current cable connection behind the radio (ISO connector) My questions: Which cable is responsible for the return signal? I would like to pull it off or correctly connect it test-wise. Where exactly is the return signal on the Leon 1M (possibly on the rear light)? Could it be a problem with mass or CanBus adapters? I am happy about any help or schematic note – Thank you in advance!