Hello Taxler, I am a car rental company and I am building a W 211 T-model again for the taxe. The car should then be provided as a workshop replacement vehicle “for little ones!”. Now my question: The car is EZ 05/2006, but not the modified one. It had a mirror taximeter installed. That was no longer there when I got the car. Now I got a (externally identical) of a 211, but from a 2007 it – model-kept. The connections fit all, except for a e Plug-in connection, which is white on the mirror, but there is only one black plug left on the vehicle. Can anyone tell me to what extent the conversion is possible at all? I have installed it now and the plug-in connection is dropped. Now lights up after the start F – (Taxi) – tariff. with the buttons comes CarCod or Error. Certainly there are no signals there now. I would be happy if there were a good tip here. Thanks already – and greetings from the spring-like hall/saale.