Im trying to figure out how many key-less entry remote possibilities are there for the 2004 Audi A4 B6. I ordered 2 new uncut key FOB's for my car. I had one cut and I programmed the IMMO myself using the VagCom no problem. But I cant program the damn remote portion to lock/unlock the car. I tried 2 different remotes that both have the (8Z0 837 231) part # but no success. I just looked on e-bay and saw another possibility part # (4D0 837 231) So now im wondering is there a 3rd or 4th???? I'd hate to have to buy one of each just to try and find the right one. Any help would be great! Whats your code on your remote??