First Airbus yoke mic/intph switch replacement for me.
One 1/4" nut to get the toggle off (and yes a rag or towel on your knees would be helpful to catch the nut or screws if they are dropped). You're working this thing backwards which screws you up somewhat.
Two tiny "nazi" screws to get the switch mount plate off.
Only three wires, but I still did them one at a time. Two sets of hands is an absolute must. One person holding the heat shrink back on the wire while supporting the switch. The other person doing the soldering.