Dodge Demon Headlight switch removal

Hi,

Can someone let me know how to remove headlight switch on 72 dodge demon. Switch is acting up. I'd like to try and clean terminals and use deep contact cleaner on it. Can this be done with it in car? From what I understand these switches are readily available so I may just install new one. I would appreciate step by step. Does gauge cluster have to be partially removed? Looks like four screws holding it in from the front. The resister in switch is finicky. Also dome light not working. May be related. Thought I'd replace switch first.

Thanks in advance..