If its a late engine it will have a Bosch vp pump
these have there own ecu built on the top of pump & the pats is built in
only way round this is a new key programed to the vehicle.

If its the older style Lucas pump then you can just wire a 12v ignition feed to the stop solenoid

if you have the original ecu imobiliser chip reader etc
id re fit it & try a few key places as some may be able to.do it on reg plate
depends what sort of software they have
good luck