Ensure the antiluce is facing outwards. Place tray hinges in together and pull back on the side/tailgate. Lift your side/tailgate up. Flick antiluce up and and push down to secure side/tailgate. Install sides before installing the tailgate.

To remove sides, undo the antiluce like so and push the side/tailgate in towards the cab to detach the hinges. Lift side/tailgate up and remove from tray. Remove your tailgate before removing the sides.