I believe you pull the switch out half way then push the little spring button on the switch and that releases the knob to pull out the rest of the way then unscrew the switch.
Thats the headlight switch.
Wiper switch may have a very small setscrew or there is a very small tang where knob attatches to shaft. A pick to release it.
Very similar to my barracuda,but i never took mine apart.
