I like the idea suggested to listen to the heat fan, but on my Xantrex it is so quiet I have never ever heard it. Worth a try I suppose. As for trying to locate it with a magnet, all Xantrex chargers I have seen have an aluminum heat sink. So a compass is not likely to work unless there is either a large magnetic field created by the charger (doubtful) or there is something else made of metal located near. Larry, since you see one end of the wire conduit, you could insert a fish in it or those plastic rods available in lenghts of +/- 3 feet at Harbor freight. When the fish or the rods hit something solid, the sound might give you a better idea of where the charger hides. If the sound doesn't reveal its whereabouts, pulling the fish back and measuring the lenght that was inserted in the conduit will give you some indication. BTW, dumb question, but since you've never seen it, do you have a voltmeter that indicates that a charger is indeed at work ? Good luck