For Select GM Vechiles with Bose Stereo (16-24 Camaro)(14-24 Silverado/Sierra)(15-20 Tahoe/Yukon/Escalade) (15-23 Colorado/Canyon)(2014-2019 C7 Corvette) And Others | Allows you to easily add a subwoofer onto your stock Bose system | Plugs into Bose amplifier and gives sub out signals to use as inputs for an aftermarket amp | Does not interfere with your current system and saves you from cutting or splicing into the factory wires | The included ANC harness defeats the dreaded Feedback noise when adding subs to stock Bose systems