looked at it a little more today.
Up front the feed is three wires....Yellow, Red, Black,
The red splits off into 2 as it approaches the headlight area.
The headlight socket is A Red and Black.
Additionally, there are the other Red and the Yellow, they have been cut and have no connector/s
In the back, there are 2 connectors with 2 wires each.
one is two Blacks
one is a Red and Brown
The Black from the headlamp socket, the Yellow up front, and the Black/Black connector in back all go to ground.
The Red from the headlamp socket, the 2nd red up front, and the Red/Yellow socket in back all conduct. (+) then.
So no brake function then....Im thinking there was a handlebar switch for on/off.
Im going to tuck them away for now until I get some lights for it.