well, there is a connector under the seat, if you disconnect that it will do it. HOWEVER, it disconnects the aibag as well.
there are 2 wires going into the seatbelt lock thingy. im thinking that when you lock the seatbelt into it, it creates a circuit or whatever you want to call it, and doesnt ding, if you were to cut those 2 wires and connect them together, i think it would solve it, but im not positive.