Hi Mate On the factory fitted alarms the control box is located behind the passenger side dash. You will need to remove the lower dash (5 screws) and the glove box (3 screws and 3 bolts). Just remember to remove the glove box light before removing the glove box. Next to the control box should be a panel with three fuses in it. One controls the horn/siren, one for the passenger side lights and one for the drivers side lights. One of these should be blown and just needs replacing. Hope this helps Cheers Deano
