Update on an 06 Expedition
Reverse Wire - Black / Violet Wire, not Black/Pink. (Trial and Error)
VSS - Not really sure how to test this well, but there was a Grey/Black wire going to the wiper motor so I tapped that.
Also just a note, I figured this out the hard way, unless you either grounded your the green wire or you tied it to the parking brake, you can't access your settings, change language, etc. I thought the unit was defective when I first installed it, and then just decided to go ahead and try grounding the cable and see if that was it. I thought it was stuck in some demo mode. A