Which Navigation part number?

Hi, new here.
I just purchased a 2007 Yukon (get it next week) with the 6 cd + xm radio and the Bose with the Bose upgrade speaker system. It does not have the rear entertainment system. So, here is my question - I want to replace the in dash unit with the factory navigation cd/radio and all the different part numbers on the ones for sale are confusing. Which part number unit do I need for this swap? Is it the 15822569? That is supposed to be for the Bose with no rear entertainment? Dealer parts guys don't have a clue!
Thanks

ok,
older part # 15882767
newer part # 15940103

those part numbers for Nav Radio with vehicles without rear seat entertainment
you also going to need a connector for VSS vire it's a connector C4
and If You want to use voice command feature, then you need a connector for on star module. without that connector you'll still get voice guidance, but not able to use voice command