I have read the posts on seat belt alarms, but cannot seem to find the answer to this issue. On my 2006 A3 Sportback 2L TDI, there is a driver-side seatbelt icon, and a warning gong when the car is in motion. All of this I expected for good safety reasons. However, there is no warning icon nor gong when a front passenger does not belt up. Can anyone tell me if this safety feature can be turned on by an Audi dealer?