My car has started honking at random. Mostly it’s short honks while driving or stopped, the confusing part is that it will do it when it’s off and locked (these honks are long). I know there isn’t a fuse or relay for the horn, so it leads me to believe it’s a short in the horn wire perhaps. I have had someone take a look and could not find a short. How do I even begin to fix this issue? Is the issue even the horn or security system? Could it be somehow linked to my automatic engine throttle light being present (red lightning bolt) ?