About a year ago my car's horn started blaring out of nowhere, even though the car was off and nobody was in it. I disconnected and reconnected the battery, which fixed the issue but only for a few minutes, because then it started blaring continuously again. At this point I removed the relay so the horn couldn't sound at all. Haven't had a horn in over a year. I've heard it could be an issue with something in the column or the piece on the steering wheel that you press to use the horn. I don't know much about cars (although I'd like to learn) but I'd like to try to fix this issue on my own if I can before taking it to a shop.