The Stovebolt Site Forums The Shop Area The Electrical Bay Connecting my horns

Bought a nice pair of Auto-Lite, Model HW horns at a swap meet earlier this month. Instead of a screw connector like I’m used to seeing, they have a hole, much like a stereo jack. What sort of connector do I need to look for and what size? I’m thinking it’s something that’s akin to a wired radio ear piece or an electric guitar male plug that I need. Anyone have a photo or a tech sheet they could share?

Thanks