2010 VW Jetta TDI Sportwagon Retrofit02/01/2016 ByAl Egert The AAA-VWAUD5 cable is what is needed to replace the VW premium 8 dash receiver and use the car's built in AM/FM antenna. The quality of this cable is excellent and it works great on both AM and FM. Some adapter cables only have a one pin plug (like the one that came in an Ebay kit..not real good...you might get FM but no AM). The AAA-VWAUD5 has two pins and my car's antenna cable has a matching two pin green connector. It snapped right in and locked as it should. I assume that one pin is AM and the other FM. With my Pioneer unit, I connected the receiver's Blue/White wire to the blue wire on the adapter and it works fine. I installed my own bullet connector on the blue wires. I am so glad that I didn't get a factory replacement receiver (which is junk) and costs around $800. The first one suddenly died at only 50,000 miles. The Pioneer even sounds a lot better with the stock speakers.