04 Denali Nav disc options?

[Darren.Gillenwater]

I am new here so if there is an existing thread that covers this please direct me to it. I could not find what I was looking for using the search function. I am purchasing an 04 Denali XL and it is missing its Nav disc. I am not sure if I need to get a disc specific to that model year(s) or if any of the newer GM discs will work. Please let me know what my options are. Thank you.