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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
Custom GMC Audio Packages
GMC Backup Cameras
GMC Car Stereos
GMC Radar Detector Mounts
GMC Security & Remote Start
GMC Speaker Adapters
GMC Subwoofers & Sub Boxes
GMC ThunderForm Boxes

Top Sellers 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

$9.99

IN STOCK

5-1/4" or 6-1/2" Speaker to 6" x 9" Mounting Hole Adapters

5-1/4" or 6-1/2" Speaker to 6" x 9" Mounting Hole Adapters • Mount your pair of 5-1/4" or 6-1/2" speakers in a 6" x 9" mounting hole

FREE Speaker Adapters For Factory 6"x 9" Speaker Locations

$5.99

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

$5.97

IN STOCK

Interface Module that Allows the Addition of an Amplifier in Select 2006 - 2013 General Motors Vehicles [Chevrolet, GMC, Cadillac, etc...]

• 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

$34.95

IN STOCK

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

Non-Amplified Non-OnStar Interface Harness to Retain Accessory Power for Select 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

$49.99

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

Non-Amplified Non-OnStar Interface Harness to Retain Accessory Power for 2006-Up GM LAN Vehicles

• Non-Amplified Non-OnStar Interface Harness
• For 2006-Up GM LAN Vehicles
• 12 Volt Accessory Interface
• Retains Accessory Power
• Provides VSS (Vehicle Speed Sense)
• Provides Parking Brake & Reverse Signals

$49.99

IN STOCK

Install an Aftermarket Radio in select General Motors Class II Vehicles and Retain Warning Chimes, RAP and Other Factory Features

• Install an aftermarket car stereo for select General Motors Class II Vehicles
• Works with Non-Bose and Standard BOSE Amplified systems
• Retains 12 Volt Accessory output (2.5 Amp)
• Retains RAP (Retained Accessory Power)
• Keeps the radio powered after the key is off until drive door opens or OEM timer ends

$44.99

IN STOCK

Install an Aftermarket Radio in select General Motors Class II Vehicles with Bose Amplified & Non-Amplified Systems and Retain OnStar

• Aftermarket Radio Installation Interface for GM Vehicles
• For select General Motors Class II Vehicles with Bose Amplified & Non-Amplified Systems
• Retains Factory OnStar
• Retains Factory Warning Chimes
• Works with Non-Bose, Standard Bose & Premium Bose / Y91 amplified systems

$89.99

IN STOCK

Non-Amplified, Non-OnStar Interface Harness for Select 2000-2005 GM Vehicles

• Designed For Use In Select 2000-2008 GM Vehicles w/o OnStar
• Provides A 12V Accessory Output
• Retains Warning Chimes Using On-Board Speaker

$59.99

IN STOCK

OE Video Integration for Select 2007-11 GM LAN29 Systems

• Retains Factory Rear Seat Entertainment System
• Provides Video Signal to Factory Overhead Video Monitor

$7.99

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)

$81.99

IN STOCK

ADBOX Aftermarket Stereo Installation Harness for Select 2000-Up GM Vehicles

• Axxess ADBOX Aftermarket Stereo Installation Harness
• For Select 2000-Up GM Vehicles
• Connects Aftermarket Stereo Harness To Vehicles Factory Harness
• Made From OEM Quality Materials
• Works With AX-ADBOX1 and AX-ADBOX2

$19.99

SPECIAL ORDER

Ships at Later Date

Dual 10" Subwoofer Enclosure for 00-06 Chevy Silverado and GMC Sierra HD Crew Cab Trucks

• Dual 10" Down Firing Subwoofer Enclosure
• Designed Specifically For 2000-06 Chevy Silverado and GMC Sierra HD Crew Cab Trucks
• Premium Carpeted Finish
• Glued & Braced MDF Construction
• Rounded Edges

$89.99

IN STOCK

6"X9" Speaker Adapter For Select 2014 - Up GM Trucks

• Speaker Adapter
• Made Specifically For 6x9" Speakers
• Designed For Select 2014 Chevrolet/GMC Trucks

$8.99

IN STOCK

Factory Amplifier Bypass Harness for Select 1998-2004 GM Vehicles

• Factory Amplifier Bypass Harness For Select 1998-2004 GM Vehicles
• Factory Amplifier Harness Includes 17ft. Of 16 Gauge Wire
• Harness Can Be Plugged In At Factory Amp And Ran To Location Of Aftermarket Radio/Amplifier

$27.99

IN STOCK

Install an Aftermarket Radio in select 2006-2015 GM Vehicles and Retain Steering Wheel Controls - Dash Kit Included

Single/Double DIN Install Dash Kit • For 2011 Chevrolet Cruze Vehicles • Accommodates ISO Double DIN Mount • Painted to Match Factory Dash Color • High-Grade ABS Plastic Construction • Factory Style Texture • Includes Steering Wheel Control Interface

$79.99

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

$79.99

AVAILABLE

Ships at Later Date

Add Bluetooth Hands Free Calling and Music Streaming to iSimple Gateway iOs Smartphone Integration Kits

• iSimple ISBT21 BluStream Bluetooth Upgrade Module
• For Use with iSimple GateWay Interfaces
• Compatible with iPhone, iPhone 3G, and iPhone 3GS
• Able to Pair up to 8 Cell Phones
• A2DP Streaming Capable
• Automatic Muting for Incoming Calls
• Easy and Quick Installation

Save 10% off the Bluetooth Adapter for Your Gateway Kit!

$69.95

IN STOCK

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