I used to drill a small hole in the back of the work box and fire the ir through the hole. With the back being clear out usually worked like a charm and kept the lv wires out of the box.This guy just has an old mx3000 with an older base and was looking to control a couple of dimmers. I think i might just price out doing dummy companion dimmers in the theater and mounting the spacer master dimmers next to the rack and putting the flashers right on the front