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American International GWH-343

Connects an Aftermarket Receiver to Factory Plug on Select 1988-2005 General Motors Vehicles

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Plugs into car harness at radio • Power/4-Speaker • Used for Installing an Aftermarket Receiver to factory plug • Compatible with select 1988-2002 GM Vehicles

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Description


American International brand icon

Authorized dealer

When replacing your factory radio with an after-market car stereo, the GWH-343 wire harness is a must for a quick and clean installation. It eliminates cutting your OE radio plug. After connecting it, your install is simple as the wires will color-match and easily connect to the after-market stereo. Without the GWH-343, you would have to cut the OE radio plug and manually test each wire to connect to your after-market receiver.

In addition, because you do not have to cut your OE radio plug off, the GWH-343 allows you to reinstall your factory receiver if necessary. A great example is if you sold your car, but wanted to keep your after-market radio and re-install your factory stereo receiver. We also recommend the Scosche BOBAZT for a quick connection that is sure to last.

Product Features:
  • Plugs into car harness at radio
  • Power/4-Speaker
  • 21-Pin plug
  • Used for Installing an Aftermarket Receiver to factory plug
  • Allows for the installation of an aftermarket radio using the existing factory wiring and connectors
  • No need to cut or splice in factory wiring
  • Compatible with select 1988-2002 GM Vehicles
  • Metra Equivalent: Metra 70-1858 and Scosche Equivalent: Scosche GM02B
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 (-)
Compatible with the following vehicles:
  • Buick:
    • 1988 - 1996 Century
    • 1988 - 1990 Electra
    • 1988 - 1994 LeSabre
    • 1988 - 1994 Regal
    • 1986 - 1995 Riviera
    • 1991 - 1994 Roadmaster
    • 1988 - 1989 Skyhawk
    • 1987 - 1995 Skylark
  • Cadillac:
    • 1988 - 1991 Deville
    • 1988 - 1991 El Dorado
    • 1999 - 2002 Escalade
    • 1988 - 1993 Fleetwood
    • 1988 - 1994 Sedan Deville
    • 1988 - 1991 Seville
  • Chevrolet:
    • 1991 - 2005 Astro
    • 1988 - 1997 Beretta
    • 1992 - 1994 Blazer
    • 1988 - 2002 1500, 2500, 3500 Full-Size Truck
    • 1990 - 2002 Camaro
    • 1991 - 1997 Caprice
    • 1991 - 1999 Cavalier
    • 1990 - 2002 Corvette
    • 1994 - 1996 Impala
    • 1997 - 2000 Malibu
    • 1995 - 1999 Monte Carlo
    • 1990 - 2002 S-10

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Specifications & Details


Harness Features
Vehicle Sound System
Standard Sound
Main Harness Function
Connect/Install an Aftermarket Car Stereo
Warranty and Return Policy
Parts Warranty Duration
1 year
Labor Warranty Duration
1 year
Warranty Provider
Manufacturer

Item Details


Manufacturer:

Model Number:

GWH-343

Weight:

0.50lbs

Internal SKU:

gwh343

Internal Product ID:

3344

Customer Ratings & Reviews


American International GWH-343 thumbnail image

5 star
100%
4 star
0%
3 star
0%
2 star
0%
1 star
0%



Durability
5
Value
5
Features
5
Design
5
Usability
5

Customer Reviews

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Plugs into GM Radios 90+

Nice product, plugs right into your GM 21 Pin radio. I used this on Pontiac & GMC stereos 1997 and 1999 respectively. Works great. Wires clearly labelled.

By Arlie on May 20, 2005

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Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

  • You see only parts engineered for your exact vehicle
  • You avoid incompatible radios, speakers, or wiring
  • Installation is smoother, faster, and frustration-free
  • You get the correct accessories the first time

Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.