mac mudie

My TD5 Defender has an anti robery device controlled by a small 2 button device which hangs next to the key. it looks like a normal door locking device but is only for the alarm. The alarm goes off for no apparent reason when a doo ris opened or the ignition key is turned to start the engine. It sounds awefull and makes it impossible to start the vehicle. Does anybody know how to solve the problem?

I have got a Spanish Defender 110, 2003, Td5. All main lights, head lights and tail lights have suddenly failed. High beam works on flash only. Fuses are OK. I guess it is possibly a relay. Where is the relay for the lights in this vehicle? Haynes seems to suggest its behind the dash display, or maybe under the Bonnet. How do I recognise it when I know where it is? Does anyone have any other suggestions as to what the problem is? If it is a relay, why do they fail? old age? Or does something cause then to fail, wiring or something?