Equipment Interference

I have recently heard about a case where as well as few other interesting incidents, a stereo turned it's volume up very loudly by itself. Upon discussing this with Neil it turns out to be uncommon but not unheard of. The electronics in some stereos are not fully shielded and exposure to, yes you've guessed it....electromagnetic fields, have caused them to alter their own volume. Whether these are the same Experience Inducing Fields that have been reported to be connected with hauntings is as yet unknown, but it is certainly interesting.

I wonder if the problems that are often reported with electrical equipment in haunted locations could have a similar explaination.