Hey Brad, 10 year old thread lol so i don't expect a reply, but I'm interested in the Naviboy, i would be willing to pay a pretty penny especially if you have the complete system working and not hacked to pieces.
I'll attach what the complete kit looks like, it might take a lot of work to remove (especially to retrace the wiring behind the dash, but i would be willing to compensate your time for that with the price.
Please let me know if you're interested