Use this adapter to make your installation of an amplifier to the factory system faster with a cleaner install. Use this plug and play adapter so you don't have to cut or splice into the factory wiring. Use to add a subwoofer amp to get more bass which will add more volume and fuller sound. Provides one pair RCA audio output. Amplifier turn-on trigger wire for aftermarket amplifier connection. Compatibility Notes: Not compatible with factory amplified stereo systems. Only works with standard systems. (No Bose, Monsoon, etc.) Connection is done at radio tuner usually in back of the radio or behind the glove box. Only works with mostly IOT or IOU RPO code systems- see below. If vehicle has the ANC- active noise cancellation type system it has to be disabled. Works with the following vehicles: Only works with the RPO codes listed below- RPO code found in drivers door QR code or glove box sticker. Mostly RPO codes IOT and IOU only- see below. Made for Chevrolet: Blazer (IOT, IOU) 2019-2020, Camaro (IOS, IOT) 2019-2020, Cheyenne (IOS, IOT) 2019-2020, Colorado (IOS, IOT) 2019-2020, Equinox (IOS, IOT) 2019-2020, Malibu (IOU, IOS) 2019-2020, Silverado New Body Style (IOS, IOT) 2019-2020, Volt 2019-2020 Made for GMC: Acadia (IOU) 2019-2020, Canyon (IOS, IOT) 2019-2020, Sierra 1500 New Body Style (IOS, IOT) 2019-2020, Terrain (IOS, IOT, IOU) 2019-2020 Use this adapter to make your installation of an amplifier to the factory system faster with a cleaner install. Use this plug and play adapter so you don't have to cut or splice into the factory wiring. Use to add a subwoofer amp to get more bass which will add more volume and fuller sound. Provides one pair RCA audio output. Amplifier turn-on trigger wire for aftermarket amplifier connection. Compatibility Notes: Not compatible with factory amplified stereo systems. Only works with standard systems. (No Bose, Monsoon, etc.) Connection is done at radio tuner usually in back of the radio or behind the glove box. Only works with mostly IOT or IOU RPO code systems- see below. If vehicle has the ANC- active noise cancellation type system it has to be disabled. Works with the following vehicles: Only works with the RPO codes listed below- RPO code found in drivers door QR code or glove box sticker. Mostly RPO codes IOT and IOU only- see below. Made for Chevrolet: Blazer (IOT, IOU) 2019-2020, Camaro (IOS, IOT) 2019-2020, Cheyenne (IOS, IOT) 2019-2020, Colorado (IOS, IOT) 2019-2020, Equinox (IOS, IOT) 2019-2020, Malibu (IOU, IOS) 2019-2020, Silverado New Body Style (IOS, IOT) 2019-2020, Volt 2019-2020: Made for GMC: Acadia (IOU) 2019-2020, Canyon (IOS, IOT) 2019-2020, Sierra 1500 New Body Style (IOS, IOT) 2019-2020, Terrain (IOS, IOT, IOU) 2019-2020