1966 Optional switches: Rear Air & Hazard flasher. (I need info)

DesertBarracuda said
That red button is actually the parking brake warning light. The toggle would be for rear defrost or hazard warning lights.
Click to expand...
https://www.forabodiesonly.com/mopar/threads/n-o-s-rare-emergency-flasher-kit-1966-barracuda.454853/

browsing on here i just now found this. looks like the light is part of the flasher kit