Note: add an amp for GM not compatible with factory amplified stereo systems like JBL, Bose, etc. Only works with factory non-amplified systems (no JBL/Synthesis, Bose, etc.). No factory external amp systems. RCA 2-channel line output for Silverado converter to provide an audio signal to an external amplifier. Easy to install. A camaro add an amp harness for chevy No need to cutting any OEM wire. As well as with remote wire for the remote amplifier turn on wire. Fully adjustable gain control. The sierra amp wiring harness use this adapter to make your installation of an amplifier to the factory system faster with a cleaner install. The camaro add an amp adapter replacement for Chevrolet: Chevy Camaro 2016-2020, Chevy Colorado 2015-2019, Chevy Malibu 2016-2021, Chevy Silverado 1500 /2500 /3500 2014-2021, Chevy Suburban 2015-2020, Chevy Tahoe 2015-2020, Trax 2017-2019, Chevy Equinox 2018-2021( Equinox comes in 4 different plugs, but Only fits for Green Plug ). The yukon add Sub Bass Amp Amplifier Adapter Interface replacement for GMC: GMC Canyon 2015-2018, GMC Sierra 1500 /2500 /3500 2019-2022, GMC Yukon 2015-2022.