Ok, go to the general forum and download the shop manual that is stickied there. At the very end of the shop manual is a complete wiring diagram. The speed sensor is callout 18, speedometer is item 32. Speed sensor has three wires from the looks, but they change colors at the connector, and those wires then go into the ECU. There is another set that come out of the ECU and into the speedometer. The guide for the color codes and index for the callout numbers on the diagram are on a page a few pages before the actual diagram. Now where exactly the speed sensor actually is, I have no clue.
What are you trying to do?