Hi Chris you have to disable the air bags ( watched my mate do mine) uinlock all doors and open drivers window, then disconnect battery don't touch anything for 1/2 an hour, this stops the ECU getting mixed-up readings when reconnecting the battery.Then remove drivers air bag, The earth wire is then reconected by fitting a spade type connector on the end, drill the metal body of the steering wheel and refitting the earth. I would not do it myself don't like the idea of playing around with air bags ets