Use this adapter to make your installation of a 4 channel 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. Provides 2 pair stereo RCA output. Adjustable 4 channel gain output. Retains fader and balance. Connection is done at back of radio. Bare speaker wires on this adapter to connect factory speakers to the new amp. VERY IMPORTANT----PLEASE READ BEFORE PURCHASE---- Not compatible with factory amplified stereo systems. Only works with factory non-amplified systems (no JBL/Synthesis, etc.) Connecting this adapter to the factory wiring will disconnect the vehicle speakers from the radio- required adding amp for speakers to work. Quick disconnect is to connect speaker wires to run to the new amp- only the speaker wires are connected to the factory speakers- all other wires aren't used. This adapter doesn't have the amp turn on wire- that has to be found and connected separately. Easy to put back to stock. Just remove this adapter and it goes back to stock system. Adapter shrink tubed for durability. Works with the following vehicles: Chevrolet: Colorado 2015-2018 (No 7 inch factory radio vehicles), Equinox 2018 (No 7 inch factory radio vehicles) , Malibu 2016-2017 (No 7 inch factory radio vehicles), Silverado 1500 2014-2018 (No 7 inch factory radio vehicles), Silverado 2500/3500 2015-2019 (No 7 inch factory radio vehicles), Suburban 2015-2017, Tahoe 2015-2017; GMC: Canyon 2015-2018 (No 7 inch factory radio vehicles), Sierra 1500 2014-2018 (No 7 inch factory radio vehicles), Sierra 2500/3500 2015-2019 (No 7 inch factory radio vehicles),Yukon / Yukon XL 2015-2016 Use this adapter to make your installation of a 4 channel 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. Provides 2 pair stereo RCA output. Adjustable 4 channel gain output. Retains fader and balance. Connection is done at back of radio. Quick disconnect bare wire connector to connect factory speakers to the new amp- won't require looking for or cutting of factory speaker wires. The speaker wire is already cut on this adapter so you can connect speaker wires to it to run to the new amp- once this adapter is connected the factory speakers will need to be connected to an aftermarket amplifier for the system to work. Easy to put back to stock. Just remove this adapter and it goes back to stock system. Adapter shrink tubed for durability. Compatibility Notes: Not compatible with factory amplified stereo systems. Only works with factory non-amplified systems (No Bose, Monsoon, etc.). Quick disconnect is to connect speaker wires to run to the new amp- only the speaker wires are connected to the factory speakers- all other wires aren't used. This adapter doesn't have the amp turn on wire- that has to be found and connected separately. Connecting this adapter to the factory wiring will disconnect the vehicle speakers from the radio- required adding amp for speakers to work. Works with the following vehicles: Chevrolet: Colorado 2015-2018 (No 7 inch factory radio vehicles), Equinox 2018 (No 7 inch factory radio vehicles) , Malibu 2016-2017 (No 7 inch factory radio vehicles), Silverado 1500 2014-2018 (No 7 inch factory radio vehicles), Silverado 2500/3500 2015-2019 (No 7 inch factory radio vehicles), Suburban 2015-2017, Tahoe 2015-2017; GMC: Canyon 2015-2018 (No 7 inch factory radio vehicles), Sierra 1500 2014-2018 (No 7 inch factory radio vehicles), Sierra 2500/3500 2015-2019 (No 7 inch factory radio vehicles),Yukon / Yukon XL 2015-2016