I didnt change mine but i just had mine off trying to figure out why my airbag light flashes. Just make sure to disconnect the battery for a few minutes before doing anything to prevent the air bag from deploying.
You would probably have to find a way to tell the computer the air bag was still there or disconnect the system all together, otherwise you'll always get a light. There is a blue box on the right side of the radio up under the dash. Its the air bag module. Might have to dissconnect that. DON'T TAKE MY WORD FOR IT, cause I'm not 100% sure.