WTB NAV Disc for 2006 Suburban
 

Does anyone have a GM Nav Disc for a 2006 Suburban that is the most recent update or maybe the previous years update that includes the Western US? I think I need part numbers 22846887 or 20945770. I would also do 20855830 but I would not pay as much for that one as it is the 2010 update.

Thanks,
DPLarson