I'm going to put a microwave over our range like we did in our old house, the dedicated circuit is already there for it so that part is easy. My problem is the wire hanging out of the wall from the old range hood that I want to make sure I terminate properly. It is connected to the lighting circuit which I find pretty normal but I can't find where its connected. It goes down once it goes in the wall but doesn't connect to the plug behind the range or go through the floor into the basement so I can't find the other end. I've though of two options, buy one of those tone tracers like what is used for network cable and cut power and put the tone on the line and see if I can trace it back that way and hope its not behind other cabinets and such. Or mount a box there and then put a solid cover over it or put in a plug (I read that some range hoods do plug in). All the searching I've found everyone else has been able to easily find the feed side and disconnect it but I'm not having much luck. I'm guessing maybe it goes down to just above the backsplash to where there is a switch for an over the sink light and there are several wires in that box but its really hard to tell.