Solved Update: my problems were solved today when I found a mechanic with a tech II in southern Vermont who was able to marry my new used instrument cluster to my car. Mimmi was right. The cluster has to be married to the car. No you do not need the Vin number of the donor car that the New used cluster came out of. Yes you have to marry both the cluster and a portion of the audio system. BBA reman was unable to fix my old cluster. My thanks to you all for your help.Can anyone tell me whether a replacement instrument cluster requires remarrying with a Tech II?