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GMC Upgrades

GMC Bluetooth
GMC iPod & iPhone Car Adapters
GMC Android Car Adapters
GMC AUX Input Adapters
GMC Navigation & Video Bypass
GMC HD Radio Kits
GMC High Output Alternators
GMC Radio Interfaces
GMC Wiring Harnesses
GMC Backup Cameras
GMC Car Stereos
GMC Radar Detector Mounts
GMC Speaker Adapters
GMC Subwoofers & Sub Boxes

Top 20 in GMC Upgrades

Wire Harness to Connect an Aftermarket Stereo Receiver to Select 1988-2005 GM Vehicles

• In-Dash Car Radio Harness That Plugs Into Factory OEM Radio Plug
• For Select 1988-05 GM Vehicles
• No Cutting Wires
• Converts Colors To Aftermarket Standard

$4.99

IN STOCK

Wiring Harness for Select 1998-2009 GM Vehicles

• Car Harness For Select 1998-Up GMC Vehicles
• Plugs Into Car Harness
• High Quality Factory Plug
• GXL Wire Provides Flexibility And Handles More Power
• OEM Quality

$4.99

IN STOCK

Radiopro4 Stereo Replacement Interface with Steering Wheel Controls for Select GM Vehicles

• Radiopro4 Stereo Replacement Interface with Steering Wheel Controls
• For Select GM Vehicles
• Data Controlled Accessory And Navigation Outputs
• Built In Pre-Programmed SWC Retention
• Retains Factory Amplifier (Standard & Premium)

$99.95

IN STOCK

AVBM Adjustable Voltage Boost Module with Under-Hood Adjustment for Select 19962004 GM Vehicles

• Adjustable Voltage Boost Module
• For Select 1996-2004 GM Alternators with 4 Pin Oval Plug
• Simple Plun-Play Installation
• Adjust Your Alternator's Charging Voltage from 13.5 to 19.5V

$99.95

AVAILABLE

Ships at Later Date

GM LAN Data Bus Interface with Chime Retention for Select GM Vehicles

• GM LAN Data Bus Interface with Chime Retention
• For Use in Non-Amplified Vehicles
• Does Not Retain Onstar
• Retains All The Factory Warning Chimes
• Retains R.A.P.

$39.99

IN STOCK

6" to 6-3/4" Speaker Adapter For GM Multi 05-Up

• Speaker Adapter
• Made Specifically For 6"-6 3/4" Speakers
• Designed for Select GM Multi Vehicles
• Color: Black

$9.99

IN STOCK

Radio Replacement Interface for Select 2000-2011 GM Class II Data Bus Vehicles

• Class 2 Data Bus Interface For Select GM Vehicles
• Provides A 12V DC 3 Amp Accessory Output
• Built-In Speaker Retains Warning Chimes

$39.99

IN STOCK

GM/ LAN Stereo Replacement Interface Module for Select 2004 - 2008 11-Bit GM Vehicles

• GM/ LAN Stereo Replacement Interface Module
• Made For Select 2004 - 2008 GM Vehicles
• Stereo Replacement Module Retains All Factory Safety and Warning Chimes
• Issues "Healthy" Status
• Data-Driven
• R.A.P Output

$71.99

IN STOCK

Reverse Wiring Harness for Select 2000-Up GM Vehicles

• Reverse Wiring Harness for Select GM Vehicles
• Plugs Into OEM Radio
• One 24-Pin Plug And One 12-Pin Plug
• Harness Designed To Plug In Factory Radio
• Can Be Used To Repair Harness Where Plugs Have Been Damaged

$14.99

IN STOCK

Select 1999-2005 General Motors Vehicle Radio Replacement Interface with Integrated Chime

• Select 1999-2005 General Motors Vehicle Radio Replacement Interface
• Comes With Integrated Chime

$51.99

IN STOCK

iSimple Factory Auxiliary Audio Input Interface

• Factory Auxiliary Input Interface
• Integrates Audio Source Directly Into Factory Radio
• Direct Audio Inputs For Excellent Sound Quality

$57.99

OUT OF STOCK

Amplifier Integration Harness for Select GM Vehicles

• Interface Allows Replacement Or Addition Of Amp
For Select GM Vehicles
• Interface Is Transformer Isolated
• Linear From 20-20,000 Hz
• Input Connects To Factory Stereo/Vehicle Harness

$39.95

IN STOCK

2003 GM Auxiliary Audio Input

• Auxiliary Audio Input Interface For 2003-2005 GM Vehicles
• High Quality Audio Isolation Eliminates Engine Noise
• Inputs Source From Such DVD, VCP, MP3

$37.95

IN STOCK

USB Adapter to Retain the OEM USB Port in Select GM and Chrysler Vehicles

• USB Adapter To Retain OEM USB Port
• For Select 2010-14 GM and Chrysler Vehicles

$2.99

IN STOCK

Dual 12" Subwoofer Enclosure for 99-07 Chevy Silverado and GMC Sierra Extended Cab Trucks

• 12" Dual Medium Down-Firing Subwoofer Enclosure
• For Select GM Trucks
• Designed Specifically For Chevy Silverado or GM Sierra Extended Cabs 1999-2007
• Premium Carpeted Finish
• Glued & Braced MDF Construction
• Rounded Edges

$115.95

IN STOCK

OnStar Interface for Non-Amplified GM Systems in Select 2001 - 2010 GM Vehicles

• Interface Designed To Allow For Replacement Of OEM Radio With Aftermarket Unit
• In Non-Amplified GM Vehicles
• Retains OnStar and Chimes
• RAP Features

$84.99

IN STOCK

Dual 10" Subwoofer Enclosure for 99-07 Chevy Silverado and GMC Sierra Extended Cab Trucks

• Dual 10" Dual Medium Down-Firing Subwoofer Enclosure
• For Select GM Trucks
• Designed Specifically For Chevy Silverado or GM Sierra Extended Cabs 1999-2007
• Premium Carpeted Finish
• Glued & Braced MDF Construction
• Rounded Edges

$115.95

IN STOCK

Speaker Adaptors

Universal 7" Speaker Adapter • Fits 5-1/4" and 6-1/2" aftermarket speakers in most GM and Toyota vehicles

$10.99

IN STOCK

Only 2 Left!

Non-Amplified Non-OnStar Interface Harness to Retain Accessory Power for 2000-Up GM CL2 Vehicles

• Non-Amplified Non-OnStar Interface Harness
• For 2000-Up GM LAN Vehicles
• 12 Volt Accessory Interface
• Retains Accessory Power
• Provides VSS (Vehicle Speed Sense)
• Provides Parking Brake & Reverse Signals

$51.99

IN STOCK

GM/LAN Amplified/Non-Amplified OnStar Integrated Harness for 2006-Up Select GM Vehicles

• Radio Replacement Interface
• Designed For 2007-Up GM Vehicles With OnStar, RAP & Factory Amplifiers
• Retains OnStar Functionality, Warning Chimes, and Parking Assist Chimes

$119.99

IN STOCK