Well, just for the archives, I finally wired up the immobiliser circuit
tonight.  As Matt suggested (thanks, buddy), there's a line into fuse 12
that runs the coil (circuit 15 on the wiring diagram).  I unplugged it, the
van wouldn't start.  I plugged it back in, and it started.  I unplugged it,
and the van stopped.  Excellent.  It's a black wire, on the bottom connector
to the fuse box, and having a female spade connector, went happily into the
relay I'm using.  Everything's sorted now :o)

I'm starting to get concerned at how quickly I can take the dash out and put
it back in again... The last time I didn't plug the connector under the tach
back in properly, it took me 2 minutes, according to the amount the clock
was slow, to pull it out and put it back in again.

Theft isn't a problem here, but I have one sexy looking van, so I figure
every little helps it stay mine.  Of course, if it gets driven away now, I
know it was one of you lot :o)

toodle pip,
--
       Dug Smith         | It is by caffeine alone that I put
(mailto:dug@dugbert.com) |  my mind in motion.  It is by caffeine
(http://www.dugbert.com) |  alone I start the day.