Side/window Air Bag problems of the 2006 Audi A6

The 2005-2007 Audi A6 has an integrated dashboard system that controls and manages the Audio, navigation, telephone and other non-safety related features. The same module controls the driver's side air-bag. I recently had the display module for the radio/navigation fail. This also caused the driver's side air bag system to fail. Shouldn't safety systems in a car be on separated from the entertainment systems ? this would be similar to having your seatbelts fail if the rear seat dvd player failed, or your driving lights stop working if a vanity mirror bulb burned out. . . . I hope you get my point. In virginia, the state I live in, all cars require an annual safety check - air bags included. The fact that a car radio can cause your airbag to fail just seems like poor planning and putting passenger safety at risk. I have observed on the various Audi forums on the internet that this display module failure appears to be quite common.