can-am 39” Light Bar Wiring?

Hey Guys - just placing my can-am light bar and the wiring Instructions are a bit unclear. (Attached)

Not clear where to place the 3rd wire - it’s Dark Pink not black as stated (done BLK to BLK & Red to Red).

…and what is the White Terminal?

(Sport Roof & Overhead roof switch panel already fitted.)

Cheers.