Hello all! Need some help or direction on my factory bluetooth. I have an 2013 Tahoe LTZ with the Bose system (non navigation) and literally my bluetooth stopped working overnight. Is the BT an external modular that I can check or is the BT integrated into the factory radio itself? Everything else is working as it should, just the BT signal no longer appears on my phone BT menu list and can not connect because my phone does not see the vehicle. No issues with my phones BT as it connects to everything else. Thanks for any help!