f. Screw down the wing-nut clamps on the front edge of the mount to clamp
AM-6879 in position.
g. Seat RT-1209 in the mount, and screw down the wing-nut clamps. Plug the
cable head into J1 of RT-1209, and hold it in place with the two castle-head screws
h. Attach cables to J5 and J7 of AM-6879 by reaching through the back of the
i. Seat AM-6545 on the top shelf, and tighten the wing-nut clamps.