I also registered with NASIOC just to say: Thank you!
My 2006 9-2x was delivered from Connecticut today and the previous owner didn't disclose the airbag light. When I confronted him he told me it was like that when he bought it. The Saab dealer couldn't figure it out and told him there were no error codes.
So I googled, read this thread, and found a dangling airbag connector under the driver's seat. The light is out now!
Thanks again Unabomber!