2) Drill 1/2" diameter center hole for wires.
3) Feed wires through the center hole, insert three #10 carriage bolts and secure inside cabinet with 3 nuts.
2) Insert 4 #8 screws through 4 holes in black plastic base.
3) Secure screws with 4 #8 nuts on inside of cabinet
4) Re-attach dome and/or chrome ring with (2) T - 10 torx TP #6-32 screws provided