You are viewing a Factory (OEM) navigation disc removed from a 2008 STS.  It may also work in 2005 -2008 Chevy Corvette, 2005 - 2008 Pontiac Grand Prix, and 2005 - 2009 Saab 9/5, but please make sure it will fit these models before you buy this disc.  Any GM dealer will let you know whether this Navigation Disc will fit when you give them the part number 25852830.  This is NOT a reproduced disc, or a burned disc, it is FACTORY (OEM), so it fits and works perfectly. 

All of the parts we sell are guaranteed to be in good working condition unless otherwise noted. We ONLY guarantee the part(s) will fit the vehicle(s) listed in the description. If your vehicle was not originally equipped with the EXACT part(s) listed, it is your responsibility to consult a dealer to see if it will fit your application. We ONLY guarantee the part(s) will fit your vehicle if it was originally equipped with the part(s) on auction. Additional items may be needed if this is an upgrade or custom installation. Please consult your local dealer for ALL other applications.