Funny you should mention that. We installed one over the sink in our TT last year, and did not realize that there are wires in that space between the inner and outer layers of the bottom of the cabinet. If we had tried to cut one of the wires, we never would have found it; however, we drilled right through one and when we took our first trip, we discovered we had no inside lights on that side of the TT. The microwave and the coffee pot worked great, though. The dealer had to fix the wires, so we figure the coffee for that trip cost about $240!!! Other than that, installing it was no problem and we love having it there. Knowing what we know now, we could have done it a little more carefully, and probably have avoided the wire. Good luck.