The stereo channels in stereo radios (or at least in some stereo radios)
must have a feedbacl/load on them or otherwise one or the other channels
can blow/malfunction/stop working.I once read an article about that in a
magazine.I am not an expert on things like that,perhaps it depends on
the quality or how a stereo radio is designed.But I do know of one
instance of it happened to the first sound amplifier I bought at a Radio
Shack store and I am pretty sure that is what caused the problem with
the stereo AM/FM radio in his car.
cuhulin