Obviously to do with the wiring .. (home job). The sound only occurs when the car is running...
Any ideas how to stop the alarm from making a constant tapping / buzzing sound when it is running ?
Or could it be the wiring of the central alarm unit ?
WHY WHY WHY !!?? (if it is dodgy wiring gimme some pointers as to where to look .. power cable seems to be ok .. we tried a few different ones and still the buzzing... )