Sorry if this is answered somewhere, but I've been searching for days with no luck. I have a 2008 Sable that was stolen. I got it back, but the card with the factory securicode is missing. I know what the code is, but I'd like to change it since the thief still has it.

I know that conventional wisdom is that the factory code cannot be changed, but certainly it lives on a module somewhere that can be pulled out and replaced. Maybe it is on the PCM? Does anyone know where the code is stored? Thanks for any help.