[66Sprint200]

What is the polarity of the horn contacts? Are they positive? I just got a set of Hella Air Horns from an Aston Martin for the Mustang, but I need to know the polarity of the horn contacts. I would think positive because the original horns are grounded off of the radiator support. Thanks, Michael.

[Cobra6]

check this out - compliments of Veronica

The Care and Feeding of Ponies: March 2008

section on wiring - and "Horns don't work?"

[Ivy66GT]

Yes, the horn contacts put +12V to the horns which are themselves grounded to the radiator support.

[66Sprint200]

Thank you, I just needed to make sure for when I install the horns tomorrow.