Hey guys needs some Audi help. I work at a dealership and we recently took in a 2009 Audi A6 for trade. It looks like it has Navigation in the vehicle but if you press the button it says Navigation not installed.

Is there anyone who can help me figure out what we need to do to make it work? Do I need to buy the module? Is there just a disk I need. Any help would be greatly appreciated. I can give the VIN if that will help. Thanks guys.

Drew