I don't know how to do this, but I will give you a nickels worth of free advice: DON'T DO IT UNLESS YOU PLAN ON USING IT STRICTLY FOR OFF ROAD RACING ONLY!!!!!
When you decide to sell the car, no one will want a car with the air bag tampered with. Even if you reinstall it, you run the risk of messing with the system to begin with. Someone buys the car, gets into accident, airbag doesn't go off, car goes to garage for inspection and guess what -- they find it's been tampered with. Not to mention, if you let someone drive the car without a properly operating airbag and they get into an accident, you will be in seriously deep crap. Only do this for off road operation.