I never said they did travel at the speed of light in cables.Really? Wut up?:
As I said previously RFI/EMI is light speed due to the photons involved whilst the other - magnetic field - is stationary.
The audio signal moves VERY rapidly. It moves at near light speed in a conductor.
Sure looks like you said that to me.
I don't think you realize how much you've painted yourself into a corner- on the one hand you seem to get that magnetic fields can impinge themselves onto a cable, OTOH you say that a signal passes through a cable via photons (which won't be influenced by said magnetic fields). Ya can't have it both ways...