Here's the Wolf Room -- the wires for the master bedroom go through here as well. The real key is to find a path that avoids electrical wires as much as possible, in order to avoid interference. If you must pass over a wire, you do cross them perpendicular to each other, and as far away as possible (e.g. top of truss, if electrical wires are on bottom of truss).

Each wire is marked on both ends so we know which wire is which when hooking them up.