There is a special wrench used the unscrew the bezel nut from the front, however I have also removed them using pliers and a piece of thin leather or cloth to provide protection for the chrome and extra grip on the taper. The bezel unscrews and the switch pulls out from behind the dash. The bezel nut will not clear the key cylinder ring due to a step inside it that prevents the nut from being removed with the key cylinder in place. To remove the key cylinder you need the correct key, and a paperclip. Straighten one leg on the clip, now turn the key fully counterclockwise. Now take the paperclip and use it in the hole in the cylinder and push in the release pin and with it pressed turn the key farther counterclockwise until it disengages from the ignition switch. Pull it straight out of the housing. Remove the bezel and unplug the electrical connector.
To install it, be sure the switch is in the correct position, then slide the key cylinder into the housing and once it is seated turn it clockwise until the pin locks it back into place.
Tuesday, June 12th, 2018 AT 4:10 PM