Repairing Recovered CX-7...Help!

So I bought a 2007 mazda cx7 from a tow company. The guy told me it was a stolen recovery and the ignition was punch out. I have another mazda that is also a 2007 mazda cx7. I swapped the steering wheel column and ignition and ecu pcm and immobilizer from the one I had to the new one and everything works but it won't start cause the anti theft light keeps flashing what do I do?
 
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