[QUOTE=Of course, I assume that you know history of vehicle with VIN A919024 and you know 100% that it has not been flooded and the equipment functions well
This is the missing part. I have been googling the phase "how to bench test BMW navigation system, but have been unsuccessful. I am sure there is a way, I need to keep searching.
BTW, I sincerely appreciate you confirming that the unit is a match.