Rich, The Warning buzzer is not part of the seatbelt pretentioner or the Air Bag operation. The wiring diagram confirms this... But I will try and explain it here... if you put your key in the ignition and the door is open, a circuit is made and the buzzer goes off... if you have the car running and the door open the buzzer does not go off... therefore the key inthe ignition is the open switch... the same as pulling the connection. now if there was a connection to the air bags ( and there isn't) there is no different between the connection being off and the engine running or the key breaking the connection by being in the running position. Therefore, for it to not operate the airbags, you would have to be stationery with the key in the ignition on the off position with the door open and the connection removed... ( buzzer not sounding ) and get hit in the ass by a truck doing over 60 Kms per hour... Clear as mud hey...
PM me your Email address and I will try and send you the wiring diagram in a PDF file. Cheers TOMUCH