Huh, didn't realize they were not even GM horns. They are trumpet style but the (diaphram?) is mounted differently. This truck was a fire truck at one point in its life, maybe they were put on then? I'll have to look them over and see if I can find a name. I'm going to guess that the box on top is some kind of relay, I'll clean it up and see what it is. Thanks for all the help
Last edited by Libby007; 08/15/2021 4:13 AM.
