How do I change fan switch for a/c and the light bulbs in radio buttons? ?

I have an '05 Chevy Silverado 2500 HD. The fan switch only works on the 3 %26amp; 4 speed. I assume the switch is bad. Also the lights on the radio display buttons are out, is there a way to change light bulbs in the display. The sliding temp. controls lights for climate control are also out can they be changed and how? How do I change fan switch for a/c and the light bulbs in radio buttons? ?The fan speed issue is a bad fan resistor module located somewhere under the glovebox attached to the a/c box.



Radio back lights are not serviceable. Slider light %26quot;might%26quot; be. You would have to pull the panel to see if it has socketed bulbs.