Amplifier Integration Interface for Select 2002-2009 GM Vehicles

Special Order. Ships at Later Date

List price $119.95

You Save: $60.00 (50.02%)

Thanks , You Pay:


with warranty

+ FREE Shipping in US 48

Add an Extended Warranty

SquareTrade Product Warranty
Fast, Free Shipping

Within the US 48

60-Day Money-Back

Hassle Free Returns

365-Day Coverage

Warranty assistance for a year

Get FAST answers from customers ASK a Question See questions answers

PAC Store

General Features:

  • Allows the addition of an amplifier to select GM vehicles
  • Plugs into vehicle's wiring
  • Provides full-range linear output from 20-20,000 Hz
  • 4 channel RCA output
  • Reads databus signals and provides analog audio signal
  • Output level controlled by OEM radio
  • Authorized Internet Dealer
  • 1-year Manufacturer's Warranty

Vehicle Compatibility

  • Buick
    • 2005-2007 Lacrosse
    • 2004-2007 Rainier
    • 2003-2007 Rendezvous
    • 2005-2007 Terraza
  • Cadillac
    • 2003-2006 Escalade
  • Chevrolet
    • 2003-2006 Avalanche
    • 2003-2006 SSR
    • 2003-2006 Suburban
    • 2003-2006 Tahoe
    • 2003-2008 Trailblazer
  • GMC
    • 2002-2009 Envoy
    • 2003-2006 Sierra
    • 2007 Sierra Classic
    • 2003-2006 Suburban
    • 2003-2006 Yukon
    • 2003-2006 Yukon Denali
  • Hummer
    • 2003-2007 H2
    • 2005-2009 H3
Check out the CTA-GM24 product manual

Harness Features

Vehicle Sound System
This refers to what kind of sound system the vehicle has. Premium audio systems are generally name brand systems (such as JBL, Bose, Rockford Fosgate, etc) that have been installed inside a vehicle when it leaves the factory. Often they more advanced systems, complex wiring, factory amplifiers, and other features that can make installing aftermarket component difficult.
Standard Sound
Main Harness Function
Different installations on different vehicles require different harnesses. This type is what the harness is considered. Each wiring harness we sell serves a purpose such as installing an aftermarket car stereo, integrating an aftermarket amplifier with your factory car stereo, connecting Bluetooth to your factory car stereo, and more.
Install an Aftermarket Car Amplifier & Connect to Factory Radio
Compatible Vehicle Make
Allows you to view only items that are compatible with your vehicle's make. Does not guarantee that it will work with your vehicle year or model.
Compatible Vehicle Make and Model
The model of vehicle that this vehicle specific product is designed for. Please keep in mind that engine variations can affect the compatibility of the products.
Buick Lacrosse
Buick Rainier
Buick Rendezvous
Buick Terraza
Cadillac Escalade
Chevy Avalanche
Chevy SSR
Chevy Suburban
Chevy Tahoe
Chevy Trailblazer
GMC Envoy
GMC Sierra
GMC Yukon
Hummer H2
Hummer H3

Premium Harness Features

Factory System Amplification
This refers to the factory sound system and whether the item is compatible with amplified or non-amplified systems.

Warranty and Return Policy

Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
4 Star
3 Star
2 Star
1 Star

Average Attribution Rating

Browse 1 question and 1 answer
Hide answersShow all answers | Sort by
Why did you choose this?
Sonic Electronix Store
I need it
Phillip B on Dec 24, 2017

Product Summary


Model Number




Internal SKU


Internal Product ID


Sonic Electronix Wiring Guide

Wiring Diagram Legend

Warning: The image depicted shows the resistance change when wiring multiple subwoofer terminals. Please refer to your subwoofer's owner's manual for the proper wiring of its terminals. Sonic Electronix, Inc. is not responsible for damage caused to your audio system or vehicle due to improper installation. Please call tech support at 1-877-289-7664 if you require additional assistance.

Product Name: PAC C2A-GM24

Item Added to Cart


Amplifier Integration Interface for Select 2002-2009 GM Vehicles


Keep Shopping

Get Added Peace of Mind with SquareTrade

Why SquareTrade?

  • The #1-Rated Protection Plan
  • 5-Day Service Guarantee & Free Shipping
  • Protection from Normal, Everyday Use
You have added a warranty
Add Warranty
3 years of protection