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Metra 70-2003

Wiring Harness for Select 1998-2009 GM Vehicles

In Stock
|

List price $19.99

$10.99

with warranty

You Save: $9.00 (45.02%)

Arrives by Tuesday, Oct. 28 to zip 07095

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In Stock

Arrives by Tue, Oct. 28

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Metra Audio Store

Product Features:

  • Plugs into car harness for Select 1998-up GMC Vehicles
  • 24-Pin plug
  • High quality factory plug GXL Wire provides flexibility and handles more power
  • High impact ABS OEM Quality plastic molded connectors
  • OEM Quality terminals
  • Allows for the installation of an aftermarket radio using the existing factory wiring and connectors
  • No cutting of factory wiring needed
  • Note: Not for use with Bose or Monsoon sound system except the Hyundai Santa Fe
  • Check the Product Instructions to see basic instructions and compatibility list for the Metra 70-2003
  • 1-year Manufacturer's warranty

Connections:

  • Yellow 12V Constant
  • Red 12V Accessory
  • Black - Ground
  • Orange Dash Light Dimmer/Illumination
  • Green Left Rear Speaker (+)
  • Green with Black Stripe Left Rear Speaker (-)
  • White Left Front Speaker (+)
  • White with Black Stripe Left Front Speaker (-)
  • Purple Right Rear Speaker (+)
  • Purple with Black Stripe Right Rear Speaker (-)
  • Gray Right Front Speaker (+)
  • Gray with Black Stripe Right Front Speaker (-)

Compatibility List:

  • Buick:
    • 2004 - 2005 Century
    • 2005 - 2009 LaCrosse
    • 2004 - 2007 Ranier
    • 2002 - 2007 Rendezvous
    • 2005 - 2008 Terraza
  • Cadillac:
    • 2003 - 2006 Escalade (All)
  • Chevrolet:
    • 2003 - 2006 Avalanche (non-bose)
    • 2002 - 2005 Blazer
    • 2004 - 2009 Colorado
    • 2005 - 2009 Corvette
    • 2003 - 2007 Express
    • 2001 - 2002 Express Van
    • 2000 - 2005 Monte Carlo
    • 2003 - 2006 Silverado
    • 2007 Silverado (Classic)
    • 2003 - 2006 SSR
    • 2002 - 2004 S-10 Pickup
    • 2003 - 2006 Tahoe (Non-Bose)
    • 2003 - 2009 Trailblazer (Non-Bose)
    • 2000 - 2008 Uplander
    • 2000 - 2005 Venture Van
  • Geo:
    • 2000 - 2003 Prism
  • GMC:
    • 2004 - 2009 Canyon
    • 2002 - 2009 Envoy (Non-Bose)
    • 2001 - 2007 Savana Van
    • 2003 - 2006 Sierra
    • 2007 Sierra Classic
    • 2002 - 2004 Sonoma
    • 2003 - 2006 Yukon (All Non-Bose)
  • Hummer:
    • 2003 - 2007 H2
    • 2006 - 2009 H3
  • Hyundai:
    • 2003 - 2006 Santa Fe (With Monsoon)
  • Isuzu:
    • 2003 - 2008 Ascender
    • 2006 - 2008 i Series
  • Kia:
    • 2003 - 2006 Sorento EX
    • 2003 - 2006 LX Sport (Double DIN)
  • Pontiac:
    • 2001 - 2005 Aztec
    • 2001 - 2004 Grand AM
    • 2004 - 2008 Grand Prix
    • 2000 - 2005 Sunfire
  • Oldsmobile:
    • 2001 - 2004 Alero
    • 2002 - 2004 Bravada
    • 2000 - 2004 Silhouette
    • 2002 Intrigue
  • Saturn:
    • 2005 - 2007 Relay
  • Suzuki:
    • 1999 - 2004 Vitara

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.
Connect/Install an Aftermarket Car Stereo
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.
Buick
Cadillac
Chevrolet
Geo
GMC
HUMMER
Hyundai
Isuzu
Kia
Oldsmobile
Pontiac
Saturn
Suzuki
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 Century
Buick Lacrosse
Buick Rainier
Buick Rendezvous
Buick Terraza
Cadillac Escalade
Chevy Avalanche
Chevy Blazer
Chevy Colorado
Chevy Corvette
Chevy Express Van
Chevy Monte Carlo
Chevy S-10
Chevy Silverado
Chevy SSR
Chevy Tahoe
Chevy Trailblazer
Chevy Uplander
Chevy Venture
Geo Prizm
GMC Canyon
GMC Envoy
GMC Savana
GMC Sierra
GMC Sonoma
GMC Yukon
Hummer H2
Hummer H3
Isuzu Ascender
Isuzu I Series
Kia Sorrento
Oldsmobile Alero
Oldsmobile Aurora
Oldsmobile Intrigue
Oldsmobile Silhouette
Pontiac Aztek
Pontiac Grand Am
Pontiac Grand Prix
Pontiac Sunfire
Saturn Relay

Warranty and Return Policy

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

Summary of Customer Ratings & Reviews

Rating Distribution

5 Star
72%
4 Star
11%
3 Star
17%
2 Star
0%
1 Star
0%

Average Attribution Rating

Durability
4.6
Value
4.6
Features
4.4
Design
4.6
Usability
4.6
Robert

Canada

Overall
Durability
Value
Features
Design
Usability
Doesn't work on 2007 Pontiac G5

June 16, 2014

Bought this as a cheap alternative to change my in car stereo on my 2007 Pontiac G5. This adapter clearly doesn't fit. Not worth it to ship it back as I'd break even.

0 of 0 found this helpful

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Joseph

tulsa, OK

Overall
Durability
Value
Features
Design
Usability
great harness

March 14, 2014

this harness worked great. just plug and play. good job Sonic

0 of 0 found this helpful

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rob

Wichita, KS

Overall
Durability
Value
Features
Design
Usability
works like a champ

February 14, 2014

If ya don't really care about the ding ding from your car this is a cheap way to get an aftermarket radio in your ride.

0 of 0 found this helpful

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Larry

Markleton Pa

Overall
Durability
Value
Features
Design
Usability
Needed a part

July 19, 2013

I needed a new wire harness to replace a bad wire job on my daughters car. this did a great job for us.

0 of 0 found this helpful

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Ben

Canada

Overall
Durability
Value
Features
Design
Usability
Very easy to use

July 10, 2013

I found this extremely easy to use and it was very helpful for simplifying my installation into a 2003 Toyota Matrix

0 of 0 found this helpful

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illy

Champaign, IL

Overall
Durability
Value
Features
Design
Usability
Super Buy

March 10, 2013

This product arrived on time and is easy to install. Very impressed. Fit right into my car with no problem. I would recommend this product

0 of 0 found this helpful

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JASON

GREENWOOD, IN

Overall
Durability
Value
Features
Design
Usability
Metra harnesses #1 again

February 24, 2013

I love using the Metra harnesses. Metra is the top of their game.

0 of 0 found this helpful

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kyle

houston, texas

Overall
Durability
Value
Features
Design
Usability
did alright.

January 12, 2013

I put this in an 03 silverado but when I installed it everything matched except the power wrote so I had to wow it into a fuse.

0 of 0 found this helpful

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Shawn

Arlington, TX

Overall
Durability
Value
Features
Design
Usability
good

January 2, 2013

Great simple harness. The fact that it was free with radio purchase is great too.

0 of 0 found this helpful

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Darryl

Redwood City, CA

Overall
Durability
Value
Features
Design
Usability
easy

December 16, 2012

Worked like a charm. Wires all matched up as they should

0 of 0 found this helpful

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Damon

Des Moines, IA

Overall
Durability
Value
Features
Design
Usability
Works perfect as it should!

July 9, 2012

I have an 2004 Colorado, I did have a a fancy chime retention/computer harness and kept having lots of weird electrical issues. I replaced the unit w/ this unit and have had no more issues. Should have went this route in the first place.

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stan

saint peters, mo.

Overall
Durability
Value
Features
Design
Usability
works great

March 11, 2012

Easy to install, great tech at Sonic turning me on to this part.

0 of 0 found this helpful

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Ralph

Boston, MA

Overall
Durability
Value
Features
Design
Usability
Metra 70-2003

January 19, 2012

Quick shipping. Product easy to use and install and works perfectly.

0 of 0 found this helpful

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Brian

Bellingham, MA

Overall
Durability
Value
Features
Design
Usability
Great

November 28, 2011

It works great. I am very pleased with the product.

0 of 0 found this helpful

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Carlos

Montgomery, IL

Overall
Durability
Value
Features
Design
Usability
Nice

July 11, 2011

Works great with my grand prix makes installation way easier no need to cut wires

0 of 0 found this helpful

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dennis

houston, tx

Overall
Durability
Value
Features
Design
Usability
excellent

March 21, 2011

Worked as advertized. Was the correct adapter.

0 of 0 found this helpful

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Dave

Lake Mills, IA

Overall
Durability
Value
Features
Design
Usability
Wrong Harness

January 18, 2011

Needed a harness for a 2004 LeSabre. Wrong one. Needed Scosche GM07B since it has the GM Dock and Lock system. Be sure to check to see if u have the Dock and Lock in your car before ordering.

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jvj

Sullivan, IL

Overall
Durability
Value
Features
Design
Usability
Easy for all

September 20, 2010

every wire matched up to the wires from my stereo so it was just splicing and plugging the stereo wiring harness into the vehicle wiring harness and that was it!

0 of 0 found this helpful

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Browse 3 questions and 4 answers
Hide answersShow all answers | Sort by
Why did you choose this?
Sonic Electronix Store
could not find product anywhere else
Andrew S on Aug 27, 2014
will this harness work on a 2005 pontiac grand am?
A shopper on Oct 2, 2014
Best Answer: Yes is a GM car make sure to read color code in the bag of Metra wire harness go online and check for wiring color code of your car by model and year write everything down on paper, also make sure part number of Metra harness is compatible with your car " it does not hurt double check" I do all the time, good luck sir :D

Regards
Juan
Reply · Report · Juan V on Oct 3, 2014
· Add Answer · I Have This Question Too (0)
Metra 70-2003. The description does not mention the blue/white wire and orange/white wire. The picture clearly shows both of these. What do they go to?
Mary W on Aug 17, 2014
Best Answer: The blue and white wire is for your remote hook up to your amps all though i bypassed the remote wire and installed switches

The orange and white wire was suppose to be for the dimmer feature if your radio has one mine didnt work

The extra red wire shown is for the radio's igintion on wire being as chevy dosent use a hot wire and a ignition wire in their factory harness so u have to find a wire that has power when you turn the key to the acc. Position. Or do like i did and put the radio on a switch as well.
Reply · Report · Richard v H on Aug 18, 2014
· Add Answer · I Have This Question Too (0)

Product Summary

Manufacturer

Model Number

70-2003

UPC

086429075799

Weight

0.17lbs

Internal SKU

met-702003

Internal Product ID

12452

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: Metra 70-2003