There is no "hack" for the navigation. The vehicle either had the software uploaded at the factory or it didn't. All of the hardware is the same regardless of options chosen. The navigation option is merely just the software itself, which is not available outside the factory or the people who designed it. It is a very closely guarded program.
My young grasshopper, Ford has you looking left when the answer is on the right.
Hpozzuoli is confirming it can and has been done on a myford touch.
All the software is built into these units.
Its just a matter of telling the computer that function is enabled.
Someone else brought up a valid point here though why Ford wont offer it as an after built option. I concur what they said. There are too many different packages that Ford released when they build the Explorer.
If you look at the Ford brochure, you will notice navigation is not available unless you have leather seats.
But you also have to remember, some people don't have a rear window defroster etc.
There are so many variations it would be a nightmare as someone else said to make sure they only activated the functions your Explorer has.
The iGo is already a variation of a hack.
Going back to what Hpozzuoli said, I'm sure its already being done.
There is even a device hackers plug into cars that allow them to control certain functions of cars such as lock the doors, toot the horn and even apply the breaks when they want.
Its a computer, not unlike Windows. Yes, I get it, if your computer did not come with say Microsoft Office, your not going to get Office by hacking the machine, but the myford touch has all the information ready to be turned on or off like your ppv cable box. There are lots of hidden screens on your cable box you never see, but they are there.
Personally if Ford said its now a $800 upgrade but you have to live with some buttons on screen that wont work, I would do it. I would have my vehicle in the bay this afternoon. But we know they wont.
A hack is emanate. Probably better than what Ford would offer because hacks are just that. They would allow you to say, don't display the heated seats button, but do display rear heater option.