believe me its like this ive just done it to mine on your steering wheel you have a stem which controls the radio it comes up with 0000 any on the stem at the back is a ckicking wheel if you move this it changes the number when on the correct 1 press the stem button which looks like a line with a square on it, which you would operate with your right thumb , when you press this it goes to the next number when you have inputted the correct code press the stem button again for 3 seconds and whalla hope this helps
curt, November 2005