Those are "upfitter switches" and are already hot. you will find the other ends of the harnesses in fuse box and will have to remove the access cover to get to them. These wires will have an empty end covered with a small piece of heat shrink. The switches are only hot when the ignition is on.
They are as follows:
Aux circuit #1 = 1936 org/lt grn 30 amp
Aux curcuit#2= 1933 org 30 amp
Aux circuit #3= 1934 org/yel 10 amp
Aux circuit#4= 1935 org.ly blue 10 amp