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GMC Upgrades

GMC Bluetooth
GMC iPod/iPhone Adapters
GMC Android Integration
GMC AUX Input Adapters
GMC Navigation & Video Bypass
GMC HD Radio Kits
GMC High Output Alternators
GMC Wiring Harnesses
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

$7.99

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

$10.99

IN STOCK

Single 10" Subwoofer Enclosure for 1999-2007 Chevy/GMC Trucks

• Single 10" 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

$69.95

AVAILABLE

Ships at Later Date

Dual 12" Subwoofer Enclosure for 88-98 Chevy Silverado and GMC Sierra Extended Cab Trucks

• Dual 12" Down Firing Subwoofer Enclosure
• Designed Specifically For 1988-98 Chevy Silverado and GMC Sierra Extended Cab Trucks
• Premium Carpeted Finish
• Glued & Braced MDF Construction
• Rounded Edges

$115.95

AVAILABLE

Ships at Later Date

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

$59.99

IN 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

$69.95

IN STOCK

Only 1 Left!

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

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

AVAILABLE

Ships at Later Date

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

AVAILABLE

Ships at Later Date

Single 10" Vented Subwoofer Enclosure for 07-Up Chevy Silverado and GMC Sierra Extended Cab Trucks

• Single 10" Down Firing Vented Subwoofer Enclosure
• Designed Specifically For 07-Up Chevy Silverado and GMC Sierra Extended Cab Trucks
• Premium Carpeted Finish
• Glued & Braced MDF Construction
• Rounded Edges

$74.95

IN STOCK

Only 3 Left!

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

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

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

$119.95

AVAILABLE

Ships at Later Date

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

1988-Up GM Motors Power/Speaker Wiring Harness with Butt Connectors

• Power/Speaker Wiring Harness
• Compatible With 1988-Up GM Motors
• Includes Butt Connectors
• EIA Standard Color-Coded Wiring
• Durable Plastic And Metal Materials
• Plugs Directly Into Vehicles Harness

$4.99

IN STOCK

Only 3 Left!

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

GM Auxiliary Audio Input

• Auxiliary Audio Input Interface For 1995-2002 GM Vehicles
• OnStar® Ready
• Plug And Play Installation
• High Quality Noise-Free Audio Isolation

$39.99

IN STOCK

Only 3 Left!

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

Only 3 Left!

Retain Factory RSE (Rear Seat Entertainment System) When Factory Radio is Replaced In Select 2012-Up GM Full Size SUV's

• Retain Factory Rear Seat Entertainment When Factory Radio Is Replaced
• For Select 2012-Up GM Full Size SUV's
• Also Provides Video/Audio Outputs For Adding Monitors

$24.95

IN STOCK

Only 2 Left!

Harness to Connect to Select 2003-2006 GM LAN Vehicles to Scosche S3-1

• 2003-Up Select GM Class II S3-1 Connector
• Seatbelt Warning Chime
• Lights Left on Chime
• Retaining Accessory Power
• Check Engine & Service Indicator
• +12V Accessory Power
• Low Fuel Warning
• Low Oil Level Warning

$15.99

IN STOCK

Only 2 Left!

Harness Used to Add or Replace Factory GM / Bose Amplifiers with Aftermarket Amplifiers

• Used To Add/Replace Factory GM/Bose Amps w/Aftermarket Amp
• 2003-Up Vehicles
• Not for Escalade, H2 Envoy SLE, Yukon SLT or Denali

$12.99

IN STOCK