QUOTE(jdamiano @ Jan 14 2022, 01:51 PM)
I’m adding a third brake light on the inside of the rear window. Can anyone save me some time with my multimeter under the dash and tell me the best place to pick up the brake lights wiring?
Where you put the wiring will depend on where you put the light. I'd recommend mounting it outside of the cabin, otherwise you're going to get reflection off of the rear window- especially at night.