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please help i have installed an rns-e system in my 2004 A4 Avant 2.5tdi and i works great but i do not have the display on the instrument cluster, which i believe i need to re-program using a vag-com. I have tried to connect my vag-com to the car but when i click the test button to test the connection it says port status ok interface not found. can anyone please let me know of any possible solutions
many thanks :?
many thanks :?