I've been searching through the threads and can't find an answer. Does anyone know which wires link the alarm system to the central locking.
I've been checking all the likely ones in the door but nothing's getting any power off the remote locking. I just need to trace back where the wires run to see if there's a break in them stopping the power getting to the locks.

 

Facelift or pre facelift?
The facelift controls are all under the dash. You had an alarm immobiliser box that links to the central locking box.