Straight forward job but be warned the horn slip ring is made of chocolate and falls apart if you arent careful with it. disconnect the battery and leave it for about half an hour, then on the back of the wheel on the two horizontal spokes you'll see metal hooks holding the airbag on, lever these unhooked with a small flat blade or similar. Then carefull free the airbag from the wheel and unplug the two wiring connectors. Disconnect any cruise/horn connectors you can see and then undo but don't remove the large torx holding the wheel onto the steering shaft. Leave the bolt on a few turns in and give the wheel a firm tug, this will free it off without you A hitting yourself in the face with the wheel and B tearing the wires out of the slip ring. Now you can remove the bolt and gently take the wheel off feeding the airbag connectors etc through the hole in the centre carefully as you do. Putting the New wheel on should be pretty obvious/straight forward by this point so I won't go on.