Adapter to allow use of our VAG-COM packages with the earlier 2*2 diagnostic connectors on certain VW/Audi group cars. This product allows connection of a 16-pin VAG-COM package to earlier cars (approx 1990-1995) with the 2*2 Data Link Connection. Please check the wiring to the 2*2 connectors on the car: If there are four wires, VAG-COM should work. If there are only three, it wont.