I just picked up a 2003 B5.5 V6 gasser with a "bricked" cluster. I have a parts Passat. I took the cluster out and installed it. It works well with no codes from auto-scan, but of course immobilizer is activated… I also have the key from the parts car that contains the RFID chip that matches the cluster I just installed. My question is: what needs to be done to get matching cluster/chip to work with existing ECU? Will the RFID communicate with the cluster and give the thumbs up to the ECU? Or does the ecu need to see the exact confirmation from old cluster/chip?