I have an OEM GM NavDisc For Sale (Canada/United States) Version 8.0C, Part #23128606. This Disc is not a copy, works perfectly and is in flawless condition. It comes with the OEM manual and case. Compatible vehicles are 2007-2011 GMC Denali, Yukon/XL, Sierra, Chevy Suburban, Silverado, Tahoe, Avalanche, 2006-2011 Cadillac DTS, 2007-2009 Cadillac SRX and 2008-2010 Hummer H2. I would like $70.00 shipped to continental U.S. & Canada (Except AK, NL, NT, NU & YT).