Add Amplifier Adapter Interface Amp Select GM Vehicles Chevy GMC OEM Stereo Bass

Want to add a subwoofer to your original stereo?

Don’t want or know how to cut into your wiring?


Take the wiring guesswork out of the installation with this plug and play wire harness!  Installation is as easy as 1, 2, 3!

1.      Remove your OEM factory radio

2.      Unplug the OEM factory wiring and plug in this wire harness

3.      Reinstall your OEM factory radio

What is it?

This wire harness provides a connection for one set of RCA cables to provide an audio signal to an external amplifier.  All that’s left for you to do is connect the main power wire from your battery and ground to the amp! (Not included)

What you will receive
  • One (1) plug and play wire harness
  • One (1) Add-A-Circuit fuse tap
  • One (1) 3 amp fuse
  • One (1) 15ft RCA Cable
  • One (1) 3ft RCA Cable
  • One (1) Bass knob

Compatibility Notes:

• Audio volume to the amplifier can be adjusted by the dials on the harness.  For easier access we recommend using an external volume knob.(Not included but we can provide one)

• Certain applications benefit from a bass knob to control subwoofer volume independent from the radio as volume is adjusted post amplification.  Check our store for other listings with these parts included!

• NOT compatible with premium sound systems like Bose, Monsoon, etc.

Converter adjustment instructions:
  • After completing all of the necessary connections, turn the adjustment pots all of the way down by rotating them completely counter-clockwise.
  • Turn the stereo system on and adjust the main volume control on the stereo to approximately 3/4 maximum volume.
  • Select one of the adjustment pots and turn it slowly clockwise until you notice audio distortion and then stop.
  • Turn the remaining pot to the same position as the previously adjusted pot.
Compatibility Chart:(Message us with questions!)

MAKE   MODEL   From   To
Chevrolet   Camaro   2016   2018
Chevrolet   Colorado   2015   2018
Chevrolet   Equinox   2018   2018
Chevrolet   Malibu   2016   2018
Chevrolet   Malibu   2016   2018
Chevrolet   Silverado 1500 LD, 2500 HD, 3500 HD   2019   2019
Chevrolet   Silverado 1500, 2500 HD, 3500 HD   2015   2018
Chevrolet   Silverado 1500, 2500 HD, 3500 HD   2015   2018
Chevrolet   Silverado 1500    2014   2014
Chevrolet   Silverado 1500   2014   2014
Chevrolet   Suburban   2015   2020
Chevrolet   Tahoe   2015   2020
Chevrolet   Trax   2017   2017
GMC   Canyon   2015   2018
GMC   Sierra 1500 Limited, 2500 HD, 3500 HD   2019   2019
GMC   Sierra 1500, 2500 HD, 3500 HD   2015   2018
GMC   Sierra 1500, 2500 HD, 3500 HD   2015   2017
GMC   Sierra 1500   2014   2014
GMC   Sierra 1500   2014   2014
GMC   Yukon, Yukon XL   2015   2020
GMC   Yukon Denali, Yukon XL Denali   2015   2020