1999 escalade key cylinder replacment

iv came to the conclusion that my key cylinder in my Cadillac. :runaround: iv been working on replacing the key cylinder the problem is i cant get the air bag out.... iv done a lot of looking on the internet and every website i find say to use a screwdriver well it never says what kind of screw driver or what size to use.... can anybody give me any information or any pictures on how to get the air bag out.

iv seen on the internet that there are some clips that i have to turn in order to get the air bag out. i stuck my screw driver in the hole in the back of the steering wheel and i kept turning and a little phillips head screw came out....