Does anyone know how to remove the center part of the steering wheel?

Does anyone know how to remove the center part of the steering wheel?

I have buttons for the radio on the left side and blanks on the right side, and what i would like to do is add a mute button for my radar to the right side. I don't know how to get the cover off and my truck is two days old and don't want to break it yet.

 

Crash it head on into a wall and the airbag will come out of the center of the steering wheel. This will gain access to the switches. Kidding!
Try these links to the Factory Service Manual and be careful that you don't set off the airbag!

http://www.customtacos.com/tech/files/05FSM/repair.html

http://www.customtacos.com/tech/files/05FSM/data/ileaf/06toyrm/06toypdf/06rmsrc/rm2006ta/044000.pdf