This is the original wiring, once I saw it I decided to not touch it. I don't know enough about this to make guesses. I know the bare/green from new switch would wirenut tie to the existing bare, but am at a loss how to handle the other 3 connections.
This is a single pole, controls light at top of garage ceiling. There are several other power outlets in the garage, which I'm guessing this acts as a sort of pass through?
This is the new light switch/sensor.