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General GM ChatWhen starting new posts, please specify YEAR, MAKE, MODEL, ENGINE type, and whatever modifications you have made.
Chat about all things GM (and related cars). Off-topic stuff should be in the Lounge, and all Model specific mechanical problems should be posted in the proper forum.
2007 should be vin coded. When the radio reads the vin and sees different one it locks. You would have to take it to a dealer or someone with a tech 2.