Steering wheel removal for headlight switch

Can anyone tell me the proper steps to removing the steering wheel and airbag. I have to replace a headlight switch

 

Not covered under warranty?

 

It's not broke I'm looking to add the one with the fog light switch built in

 

Perhaps the following 2nd gen PDF might help?

https://www.tacomaworld.com/attachments/0470065_srs_r-r-pdf.220941

 

My recollection is that you have to turn the steering wheel a certain way to access a screw on the steering column. I believe it's 90 degrees (not sure which way).

 

Ok thanks for the PDF I can get the air bag out now. Just not sure about the wheel now. Unfortunately you have to remove the air bag, steering wheel and clock spring to change the headlight switch if I'm not mistaken. I did the adding intermittent wiper mod and that was a breeze but this one could be a bit more challenging