Ok here's the scenario. I want to run rope light in crown molding through two rooms and a hallway and I would like it to all be interconnected and controlled by the same switch. If I were to say cut a ~2" round hole on both sides of a wall and put a pvc or metal pipe in the hole could I use that as a passthrough for the rope light or would I be violating a code? If so is there a better way to accomplish this? I am trying to not run a bunch of wiring through the attic.