4 Channel Add an Amp Amplifier Adapter Interface to Factory Car Stereo- Made for Some Chevrolet + GMC: 2012-2013 Avalanche/Silverado/Sierra w/Factory NAV +More - No Bose/Amp

4 Channel Add an Amp Adapter. 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. Use to add a 2/4/5/6 channel amp to power the vehicle speakers. 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. 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. Compatibility Notes: Not compatible with factory external amplified stereo systems. Only works with factory non-amplified systems (No Bose, Monsoon, etc.). 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. Avalanche, Express, Savana, Sierra, Silverado Suburban, Tahoe & Yukon vehicles equipped with a non-navigation radio are not compatible- different connector. Compatible Vehicles: No premium system/No factory external amp vehicles: Avalanche, Express, Savana, Sierra, Silverado Suburban, Tahoe & Yukon vehicles equipped with a non-navigation radio are not compatible- different connector. Made for Buick: 2011-2013 Regal;; Made for Chevrolet: 2012-2013 Avalanche w/NAV, 2010-2015 Camaro, 2011-2015 Cruze, 2010-2017 Equinox, 2013-2015 Express w/NAV, 2013-2015 Malibu, 2014 Silverado 2500/3500 w/NAV, 2012-2013 Silverado w/NAV, 2012-2016 Sonic, 2013-2015 Spark, 2012-2014 Suburban w/NAV, 2012-2014 Suburban Tahoe w/NAV, 2015-2016 Trax;; Made for GMC: 2013-2015 Savana w/NAV, 2014 Sierra 2500/3500 w/NAV, 2012-2013 Sierra w/NAV, 2010-2017 Terrain, 2012-2014 Yukon/Yukon XL w/NAV