We have heard voices coming from our heating unit (heat pump) and sometimes when the refrigerator comes on. I saw a box come up under my dial up access box, the box had our next door neighbors name in it. It looked liked he was trying to sign into our computer? Is it possible to have some kind of bugging device that would transmit these voices? We also found some mysterious holes drilled into the front of our mobile home. We can hear faint voices coming from the computer speakers also.