NAV disk - latest edition?

[Braveheart7]

i have been looking for an up to date disc too.

I have a factory 3.1 and a member on here sent me a 4.1 which was more detailed and the voice was different.

that disc got cracked trying to clean it so I am back to the old one and it stinks.

I went to GM and they said it the same part number and same version through out, but i know there are different ones out there because I had one.

so if anyone has a more updated version I would like a copy.


thanks