Yeah, since I bought a Jeep with a MyGig in it and needed to upgrade the software, I got very familiar with an unofficial website. I posted there so much and answered so many folks' questions, they asked me to be a moderator.
Dealers seem to have no clue about the MyGig and how it works and how to upgrade it...
Anyway, the site was http://mofv.com/mygig/
It was a great place to get help with a MyGig.
But now it has disappeared without explanation.
I hope you don't mind if I sticky this for a little while.