Nice choice on color! That was my 2nd choice.
As far as Sync hacks, I don't know of any right off.. but you might want to go to YouTube and search for "Ford Expedition Lockpick" - a device you can purchase which says it will unlock all of the limitations of the nav system - more specifically, things like rear camera on-demand, the ability to play DVDs while in motion, and removes limitations on some of the nav screens (the ones that can't be viewed while in motion).
For the record, I do not recommend bypassing safety features. Oh, and it appears to be pretty easy to install, plug and play kind of thing. (laughing)