that car ended up as a 2.0 turbo running silly hp through the front wheels
the ford immob system is a lot less complicated than the equiv year fiat system.
if you decide to go for it and get stuck i dont mind helping you out.
before you start get the electronic workshop manual for the car that it come out of so that you have all the wiring diagrams. i dont know about ford but fiat never put the immob circuits in their diagrams. they were easy to work out though as all the un explained wires in the car were either immob or alarm related
