I've been trying to get the horn to work on the old 68 ragtop. The relay is inside near the fuse box and it seems to be working just fine. I even took it out and checked it on the bench. Anyway, when I ground the horn wire the relay kicks in, closes the switch and sometimes the horn blows (rarely) but sometimes the relay acts like a buzzer. I tried to jump V+ directly to the relay, no change. I tried to jump ground directly to the relay terminal, no change. I even swapped the relay with one from my 67 Barracuda, no change. Both of them work on the 67 car but I get no horn on the 68. If I jump the horn wire hot to the battery I get both horns just fine. What's going on here?