help navigation wont unlock

[trx-racing]

2007 tahoe z71 i installed a navigation part no 15882766. It was removed from a 2008 gmc.. with the tech ii programer it will let you program it but it will not unlock it wont communicate with the vehicle

 

[Ont240]

Comments like your later post won't get you answers.
Suggest you edit>:whymewhyme: