Yeah what Intruck said is right, since the Pins could have possibly changed a volt meter may be needed.
Instructions:
1. By the 1N4004 Diode from Radio Shack for $1 for two
2. Get some thin gauged electrical wire from anywhere you want.
3. Cut ou about 4" of the wire you get and strip one end of the insulation.
4. Use a lighter or any little flame to heat the ends of the insulation on the end of the 4" of wire that is NOT stripped.
5. Slowly work ANY end of the diode into the space you created with heat inbetween the insulation of the wire, and the actual wire itself.
6. Now, half of the wire on the diode should be hidden behind thw wire, whil the other half is showing along with the little diode in the middle.
7. Now just connect the diode/wire assembly as shown above and you are good to go. This should work for the 07-08 models, on the 09-10 models the pin could have been changed and some more experimenting may be needed.!