I was cruising through my new Mustangs Unlimited catalog tonight, and came across something interesting; an emergency flasher switch for a late '66. Seemed to be an add-on part, possibly to meet new federal regs??? Not being a Mustang expert (like Bill is), I wondered exactly how this was wired in.
The picture in the catalog only shows a little toggle switch on a small panel. Looks like it's designed to bolt to the bottom lip of the dash. Behind the toggle there's something with spade connectors; can't tell if it's the switch body or some kind of flasher. There's no wiring diagram to go with it.