You'll need to disconnect the battery for at least an hour before you get
anywhere near the air bag.

The airbag should be held in place by 4 screws on the instrumentn cluster
side of the wheel. Take the screws out and you can remove the airbag as an
assembly that includes the plastic cover.

If you remove the airbag AND set the ignition to ON, you will trigger an
Airbag Fault that will require a technician to reset. The airbag faults are
fatal, they never go away until after service is rendered and a special
diagnostic tool is used to reset the flag that marks the fault. You and I
know that there is no real fault, but the computer circuit design is such
that the airbag is a safety-of-flight item, and when a fault is triggered
for any reason, the fault requires professional attention.