Here it is for a facelift. Power comes from position "1" on the ignition barrel (I don't know what that means), through F6, through the inhibit switch on the transmission, and in to the immobiliser.
If the vehicle starts then it's probably working.
Today I got the hill descent working it wasn't anything complicated. It seems to work with either the original 1.8 cluster or with the 2.5 cluster that I have.
I had unpinned the power feed from the plug that goes into the interior fuse box...