Install the purple wires and spade connector into the new hole in the center lower part of the plug... next to the orange wires. It should just push in and lock into place. Make sure not to put it in upside-down.
http://turboninjas.com/gallery/d/52885-2/DSC07979.JPG
Here it is with the purple wires now installed in the new hole, ready to reassemble!
http://turboninjas.com/gallery/d/52887-2/DSC07980.JPG
Your plug should now look like this:
http://turboninjas.com/gallery/d/52889-2/DSC07981.JPG
Put it all back together and your parking lights will now stay on with your headlights!
http://turboninjas.com/gallery/d/52891-2/DSC07982.JPG