> >>>>It's the guy behind you who gets his radio "buzzed". > > FINALLY, something I can use at a stoplight to fight back at that "ka-thumpa > ka-thumpa" racket from the clown next to me. > My 1963 developed a nice "audio tachometer" effect when I installed wire wires. It only had an AM radio, and I think it was most noticeable at one end of the tuning range. I'm not sure it effects FM or CDs.