remove the top dash panel closest to the windshield, then remove mounting screws for dash module.
Remove the dash bezel, remove the switch, reverse process with new switch.
The panel for the heater under wind screen just clips in remove the panel and you will be able to remove the center bezel.
I am pretty sure you have the toggle style switch, remove the lower dash bezel, and the switch is connected to the metal frame with 2 screws.
there are two nuts on the bezel behind the dash. you can reach them from underneath.
You have to remove the vent & bezel assembly from below the radio first, then the entire dash bezel from around the instrument cluster & radio.
the dash bezel is held in place with clips. you will need to carefully pull or pry the bezel loose and work your way around it.
pop out/up the vent cover that is below the windshield and is the width of the dash. a flat head screwdriver works well to get under the vent cover. once out, you'll easily identify the screws retaining it.
my3mp
I just did this. You can simply use a butter knife to GENTLY wiggle the bezel from it's fixture. Try inserting the knife near the crease points on the dash.
You have to remove the vent & bezel assembly from below the radio first, then the entire dash bezel from around the instrument cluster & radio.
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Remove the two screws at the top of the instrument cluster. This will allow you to pull out the entire bezel. Pull out the bezel, and pop the switch out from the bezel.