And not to put too fine a point on it, but I'm not a young'un, you are just older than dirt.
/johnny
I can take an old ignition coil with cotact points, a battery and a small TV antenna and I can make Morse code appear on any car with an AM radio.
I remember when I was younger many a time when certain cars drove by that the AM radio in our car would pick up the RPM static from unshielded high voltage ignition systems.