I am trying to program the fobs for a Rover 25 but it says that I should test the horn. The horn is original as came with the car and I can sound the horn from the buttons on the steering wheel but when I test the horn from the pscan I can hear a relay click behind the dashboard but the horn does not sound. Would I be OK to go ahead and program the fobs just with hearing the relay click and not bothering about the horn sounding?