using a 12 volt system with the 6 volt horn

[Badpuppy]

If it has bullet connectors they can be hard to get to make contact when they're new, even if they look secure. Be sure they're mated all the way. Snyder's graciously sent me another horn relay because I was convinced the one I had ordered was bad. Replacement didn't work either. Turns out bullets weren't pushed in well enough. Cost me return postage. Grr.