My horn keeps going off on it's own, even if the car is just stood. It stops if you press the horn a couple of times though. It's got an RS4 spoke on. I've taken the centre out and tested it and it seemed to be sticking on. As far as i can tell after pulling it apart, stretching the spring a bit and retesting it, its stopped doing it.

I've also disconnected the horns but now whenever i try to put it back together i still have the same problem as soon as the plug touches the terminal on the horn, regardless of whether the switch is in or not.

Any ideas?