Before you disconnect the wires to the airbag, make sure you are grounded to the VX. When the yellow connectors to the airbag are disconnected, a small piece of metal inside the connector (called a "Shorting Bar") drops across the two wires, bridging the wires together. This prevents the airbag fron discharging. No battery disconnect is nessessary as long as the shorting bar drops into place.
I have removed many airbags from steering wheels, dashes, side bags, etc., without a problem.
By the way, an airbag can be discharged with the power from a small 9 volt battery.
Take your time, be careful and good luck.
Howard (0761)