Radio Adapter Add An Amp Amplifier Interface Fit For 2014-2020 Chevy GMC 71-21bQ

Product Description

🔧 Installation Guide

Unplug factory wiring and connect this harness

Reinstall factory radio


🎚️ Core Functionality

Provides RCA outputs for amplifier connection

Requires user-supplied battery power/ground wiring to amplifier


📦 Package Contents

• Plug-and-play wire harness (1 pc)


⚠️ Compatibility Notes

Features adjustable amplifier volume dials (external volume knob recommended)

Bass knob advised for independent subwoofer control (post-amplification adjustment)

Incompatible with premium audio systems (Bose, Monsoon, etc.)


🎛️ Converter Adjustment

Turn all pots fully counter-clockwise after installation

Set stereo volume to ~75% maximum

Rotate one pot clockwise until distortion occurs

Set remaining pot to same position


🚘 Vehicle Compatibility

Chevrolet：

Camaro (2016-2018) | Colorado (2015-2018) | Equinox (2018)

Malibu (2016-2018) | Silverado (2014-2019) | Suburban (2015-2020)

Tahoe (2015-2020) | Trax (2017)


GMC：

Canyon (2015-2018) | Sierra (2014-2019)

Yukon/Yukon XL (2015-2020) | Yukon Denali/XL Denali (2015-2020)



Warming Tips: 
Computer monitors display colors quite differently,the color of the article may vary slightly from the pictures above.
Please allow 1-2cm differences because of the manual measurement.
The images are for reference only. please take the item you get as the standard.

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