Ignition switch surround immobiliser tab broke...

[CAGT911]

Does anybody know if I can simply replace the surround or do I have to get it "programmed" to suit my key?

I believe that the two metal tabs on the surround provide the resistance contact for identifying the key as programmed to the car, but is the surround a simple "one part suits all" replacement?

Hope I'm not asking an already covered topic, but I couldn't find a clear answer for this one. (S'pose I could ring the dealer?!??)
Thanks

[immortality]

the key is coded to the BCM so the ignition surround is identical for all cars.

[CAGT911]

Awesome, thanks for the quick response mate! Does anyone have a spare one lying around? (Gee I'm tight, aren't I?) Any ideas on cost?