hi
when removign gth original steering wheel its best to disconnect the battery for half an hour (diotn want the airbag to go off, do we!)
then just take the two torx screws out the rear of the wheel to remive airbag pannel. unclip the power plug. undo the large nut and remove wheel.
most aftermarket wheels cum with a airbag bypass lead, otherwise your light will stay on (becuase no airbag plugged in) and you would need to take the bulb out the speedo to stop it