How do you fix the horn on a 2005 Honda S2000?

To fix the horn on a 2005 Honda S2000, first check the fuse related to the horn in the fuse box and replace it if it's blown. Next, inspect the horn relay and wiring for any signs of damage or disconnection. If the horn itself is faulty, it can be accessed by removing the front bumper; then, test the horn directly by connecting it to a power source. If it works, the issue may lie in the steering wheel's horn switch, which might need inspection or replacement.