A system is described for powering a wirelessly controlled electric
system, such as a sound or security system, via a preexisting power
source within an existing building structure. The wirelessly controlled
electric system may receive power from the preexisting power source via
an adaptor that may be inserted between the preexisting power source and
at least one preexisting electric device. The wirelessly controlled
electric system may also include a switch for directing the supply of
power from the preexisting power source to the preexisting electric
device. An electric system controller may direct the operation of the
wirelessly controlled electric system. The electric system controller may
also direct the switch between a conducting and a non-conducting state to
supply power from the preexisting power source to the preexisting
electric device.