Cav/Calibra Trip Computer into a Nova

[Smoki3]

hello chaps i have a 2.0 16v nova, engine was from an astra, i have seen a couple of novas with trip computers.
does anyone know how this is done or if anyone has a link to where i might find details on fitting and making work

cheers

Any pics of nova's with the trip computer installed and loom labeled up if poss!