Originally Posted by UK Sid

Will do buddy - cheers.
Gut feeling is something to do with the dome light or siren assembly.
Won't have any time now until next weekend though - can't really be bothered after work in the evenings!..

I can live with the issue in the meantime. Only thing I can't lock is the trunk, but where I live is pretty quiet and I work at a high security site where the car park is monitored 24/7.