i never read into it this far, but there's another topic on the exact same thing & one of the guys has a much better picture than what i showed you, but it's the same idea, just on a later model toy...
http://www.streetsourcemag.com/forum/topic.aspx?method=reply&topic_id=88445&forum_id=20&forum_title=&M=False&S=True
good luck...