Hi, I've aproblem with my bmw horn and radio. They both work intermittently! When the radio is not working, neither does the horn so I guess they are linked. Main dealer looked at it and 'fixed the problem' but this lasted until I got out of the service department. I took it back and reported this but needed the car so have to rebook it. Any suggestions? Fuses have all been checked! [/b]

it might be a fuse. Check all your fuses.