Slide the original pilot wire into the empty position of the new relay's yellow/white connector. It should click and lock into place.

Reconnect all 3 connectors to the board.

Red/black at the top

Orange/blue at the middle

Yellow/white/pilot (orange or blue commonly) at the bottom

Note: we haven't touched the pink (GFCI test) connector, but technically that's the bottom connector. :)