I'm using GermanAutoParts' terminology here, though I've heard these referred to by different things elsewhere. My speedometer in my '03 Jetta 2.0L Auto acts up sometimes, the needle going all over the place. I've read up on the problem and people seem to agree that it's the "vehicle speed sensor." When I look for that part, I get several options. If you look here at GermanAutoParts, for example, you'll see a Speedometer Sending Unit, a Vehicle Speed Sensor, and a Transmission Vehicle Speed Sensor. Which should I be aiming for? Thanks much.