geezer, no kidding..? I'll do it just to see if you're only teasing + maybe learn something new + maybe have a real safety device..!

FWIW, I converted that old 1955 Ford I once owned from 6 volt to 12 volt using parts from a wrecked 1956 Ford sedan... I kept the original 6 volt horns coz with 12 volts they SCREAMED "Get outta my way"