GM ANC bypass harness vehicles w/ IOU,UZ6 RPO Code 2021-Up

This GMC ANC bypass is for Vehicles with IOU,UZ6 RPO Code. The ANC module can be found under the center dash by the gas pedal.   GM/GMC 2020-2024 Trail Blazer - None bose with ANC The Active Noise Cancellation, or ANC, in your vehicle is designed to pick up on low frequency road noise and cancels out any undesirable sounds, making your drive a quieter and smoother ride. The ANC in your vehicle can become a major headache when adding aftermarket equipment, such as subwoofers or speakers. The ANC microphones will send feedback from the aftermarket subs through the speakers, making an odd sound or random "pops" that come and go, distorting your music.   Designed and built in the U.S.A by LLJ Customs. Stolen by PAC Audio and METRA elec.