yeah there are two metal rods
![Smile :) :)](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
one for the handle and one for the knob thingie, what I'm getting at the picture shows a mechanical lock, central locking has to have an electrical part too...which appears to be missing plus the electrical connector isn't connected to anything.
cheers for the link, had a look its a little confusing but i might be able to find out, again thanks