Currently, the alarm activates when the boot is opened using the key. Pooles Rover have done a health check (£60) on the alarm which indicated that the boot lock (replacement cost £80) was causing the problem. However, a continuity check on the lock indicates no key - no circuit, key turned - circuit. Logically, this is what I would expect. Could there be another problem causng the fault? I've been waiting 12 weeks so far for a matching lock with Rover Parts unable to give any availability details. I just have that nagging doubt that it's nothing to do with the lock. Any ideas would be greatly appreciated.