Mind is the brain?

[Excited Penguin]

The analogy you've given with the radio is flawed and proves the exact contrary. We don't only look at the electrical activity in the circuit board when we look for causes of the sound produced by the radio, we also look at other known causes, such as the presenter's speaking into the microphone. The mind's activity has only one known cause - the brain. Absent of other causes demonstrated empirically we shouldn't go ahead and muddy the waters with mysticism and other such enigmatic, incoherent interpretations of what might also be happening.