The airbag is a simple thing to mess with. Quick DIY:
WARNING! Be careful. If you screw up, I'm not responsible.

1. Remove the negative cable from the battery and WAIT 90 seconds.
2. remove the plastic covers on either side of the steering wheel... one on the left, one on the right where the cruise control is.
3. Use a torx (star) head size T30 to remove the 2 screws that hold the airbag in. one on the right near the cruise control lever and 1 or 2 on the left depending on what your vin starts with. The screws are in there TIGHT too... for good reason.

4. After you loosen the screws to the plastic tabs (they won't come all the way out) pull forward GENTLY on the airbag. you may have to jiggle it a bit to get it to come out. If you still have trouble, make sure your screws are flush with the tabs.
5. remove the yellow clip from the rear airbag
6. open the safety lock on the yellow clip.
7. undo the connection.
(steps 5-7 are really one thing... you just have to do 3 things to disconnect the wire from the airbag.)
Installation is the reverse.