880 Guy

Hi, I am having an issue with brake lights On my 65 custom 880 convertible. I installed Wilwood front disc brakes with Wilwood proportioning valve. It has the wires in the front of the proportioning valve that would hook up to the brake light. Not sure how to do this anybody got any ideas? Not sure where the wires would get hooked up. I purchased a new brake light switch to go under the dash not sure if I need it?