Gnu- Yes, we've pondered the possibility of a wiring channel to be placed where the wall molding would usually go. I've never seen it done, but find it a sensible notion. Right now, for example, we're being asked to decide where all of the exterior wall wiring will go, and we don't even know what we need yet. After the cellulose has been blown it will be a heck of a job to wire or rerout wiring.