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

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

$8.95

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

$31.96

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

5-1/4" or 6-1/2" Speaker to 6" x 9" Mounting Hole Adapters (Same as Metra 82-6901)

The SA69 speaker adapters fit most aftermarket 5 1/4" and 6 1/2" speakers into 6 x 9" factory openings

$12.99

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

Plug and Play Installation, No Cutting Required

• Polk Audio DB652 (DB 652) DB+ 6.5" Coaxial Speakers
• 300 Watts Max Each, 100 Watts RMS Each
• Polypropylene UV tolerant cone
• Sensitivity: 92dB
• Installation Kit for 2005-15 GM Vehicles

$89.99

A PAIR

IN STOCK

Polk Audio Plug and Play Installation, No Cutting Required

• Polk Audio DB652 (DB 652) DB+ 6.5" Coaxial Speakers
• 300 Watts Max Each, 100 Watts RMS Each
• Polypropylene UV tolerant cone
• Sensitivity: 92dB
• Installation Kit for 1999-02 Chevy/GMC Trucks

$89.99

A PAIR

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

$49.99

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

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

$41.99

IN STOCK

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

• Install an aftermarket car stereo for select General Motors Class II Vehicles
• Works with 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

$49.99

IN STOCK

5-1/4" - 6-1/2" Speaker Adapter Bracket for Select 1995-2013 GM Vehicles

• 5-1/4" - 6-1/2" Speaker Adapter Bracket
• For Select 1995-2013 GM Vehicles
• Sold in pairs

$12.99

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 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

$89.99

IN STOCK

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

$94.95

OUT OF STOCK

Quickly add an Aftermarket Radio in Select 2004 and Up Vehicles While Retaining Steering Wheel Controls and Additional On Screen Data

• Radio Replacement Interface with Steering wheel Control and Factory Amp Integration
• For Use w/ Select 2004-Up Vehicle Harnesses
• Assign Each Control a Secondary Function
• Program it Yourself with a Windows Based Computer

FREE Maestro Radio Replacement Interface with Purchase!

$129.99

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

Single 10" Vented Subwoofer Enclosure for 2007 - 2013 Chevy Silverado and GMC Sierra Extended Cab Trucks

• Single 10" Down Firing Vented Subwoofer Enclosure
• Designed Specifically For 2007 - 2013 Chevy Silverado and GMC Sierra Extended Cab Trucks
• Premium Carpeted Finish
• Glued & Braced MDF Construction
• Rounded Edges

$74.95

OUT OF STOCK

Single 12" Subwoofer Enclosure for 1999-2007 Chevy/GMC Trucks

• Single 12" Down Firing Subwoofer Enclosure
• Designed Specifically For 1999-2007 Chevy Silverado and GMC Sierra Extended Cab Trucks
• Premium Carpeted Finish
• Glued & Braced MDF Construction
• Rounded Edges

$64.95

AVAILABLE

Ships at Later Date

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