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Scosche MA02B

Wire Harness to Connect an Aftermarket Stereo Receiver to Select 1990-2003 Mazda Vehicles

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Scosche Audio Store

When replacing your factory radio with an after-market car stereo, the Scosche MA02B 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 Scosche MA02B, 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 MA02B 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:

  • Harness is used when installing an aftermarket stereo
  • Connects the aftermarket stereo harness to the vehicles factory harness
  • Designed specifically to fit the compatible vehicles
  • Plugs into the factory harness without cutting any wires
  • Standard color coded wires provide a consistent and simplified installation
  • Made from OEM quality materials
  • Compatible with Select 1990-2003 Mazda Vehicles

Compatibility List:

  • Mazda:
    • 1990 - 1994 323
    • 1988 - 2000 626
    • 1988 - 1996 929
    • 1989 - 2000 Miata
    • 1995 - 1999 Millenia
    • 1989 - 1995 MPV
    • 1992 - 1997 MX-3
    • 1989 - 1997 MX-6
    • 1990 - 1994 Protege
    • 1989 - 1996 RX-7
    • 2001 - 2002 Tribute

Connections:

  • Yellow – 12V Constant
  • Red – 12V Accessory
  • Black - Ground
  • Blue - Power Antenna
  • 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 (-)

Harness Features

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.
Mazda
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.
Mazda 323
Mazda 626
Mazda 929
Mazda Miata
Mazda Millenia
Mazda MPV
Mazda MX-3
Mazda MX-6
Mazda Protege
Mazda RX-7
Mazda Tribute

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
83%
4 Star
8%
3 Star
8%
2 Star
0%
1 Star
0%

Average Attribution Rating

Durability
4.6
Value
4.7
Features
4.5
Design
4.4
Usability
4.6
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

17 of 20 found this helpful

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Paul

BOHEMIA, NY

Overall
Durability
Value
Features
Design
Usability
makes things easy

December 12, 2010

great for that "no hack" installation.

18 of 22 found this helpful

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Patman

Wichita, KS

Overall
Durability
Value
Features
Design
Usability
Must have when replacing stereo

July 19, 2010

You need a wire harness to make your stereo swap as easy as possible, and this unit makes that possible.

17 of 21 found this helpful

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Krista

Jeffersonville, IN

Overall
Durability
Value
Features
Design
Usability
Great for DYI

November 28, 2014

made hooking the radio up a lot easier for someone who was doing it for the first time

16 of 20 found this helpful

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Taylor

Mattoon, IL

Overall
Durability
Value
Features
Design
Usability
Great buy!

December 24, 2012

I ordered and installed this wiring harness in my 01 Mazda Tribute six months ago and have never had any problems with it. It took less that 5 minutes to install

14 of 17 found this helpful

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James M

Fort Branch, IN

Overall
Durability
Value
Features
Design
Usability
Not too bad, but theres better wire harnesses out there

May 14, 2011

Not too bad, better than nothing. I used this on a 1990 Mazda Rx-7 convertible. It may work good for other cars, but on my car it was wrong. The remote on for the factory amps was on the wrong plug. It is suppose to be on the larger plug at pin 10 (Brown/Red wire from the car). Where the remote wire was it went to 12V constant (blue/white) from the car. This kept my radio powered up all the time. I'm glad Pioneer has the remote trigger monitored and diode isolated from stupidity like that or I'd been getting a new radio. Also one of the crimp terminals was bent a little, when plugged the connector in, it tried to bend the pin. Just look out for that. I'm a old veteran car stereo installer with 14 years experience, and this is one of the worst connectors I have seen. Just remember to specify you'd like a Metra wire harness, you'll probally be happier. :)

13 of 16 found this helpful

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Johnny

Van Alstyne, TX

Overall
Durability
Value
Features
Design
Usability
Perfect match

October 12, 2011

This wiring harness made installation easy. This was my first stereo installation and I had only 1 wiring issue because of the instructions included. There was an issue with the power antenna wire, but I think the issue was with the original wire. Do not cut wire until you are sure of wiring installation.

12 of 15 found this helpful

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andyscot

Rochester, NY

Overall
Durability
Value
Features
Design
Usability
Good Product

October 4, 2012

Did exactly what I needed, well made harness and an easy install.

11 of 14 found this helpful

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Austin

Searcy, AR

Overall
Durability
Value
Features
Design
Usability
No Ground?

January 3, 2012

This wiring harness worked good, except there is no ground wire on the plug. Ground wire is its own free wire in the radio slot. Used in a 1993 Miata.

12 of 16 found this helpful

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JASON

Glen Allen, VA

Overall
Durability
Value
Features
Design
Usability
It is an accurate adapter

November 21, 2011

I was able to use the adapter in my 2000 Mazda 626 and all the wires matched up. Used this adapter to go from stock Mazda head unit and cassette player to Sony MEX-BT5700U

8 of 11 found this helpful

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Jeff

Elizabethtown, KY

Overall
Durability
Value
Features
Design
Usability
Great product, a must for installation

April 21, 2009

Wiring adapters let you wire up your radio on a bench, then when it is time to install it in the car you don't have to splice any wires. Also, if you sell the vehicle you can just plug the original radio back in because the original wiring will be intact.

9 of 14 found this helpful

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james

Anderson, IN

Overall
Durability
Value
Features
Design
Usability
Plug and Play

May 31, 2016

Easy to use and wire matched factory plug wiring harness

0 of 0 found this helpful

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BOBAZT main
Scosche BOBAZT Stereo Connector Kit

• Designed to connect in-dash receiver wiring harness to vehicle wiring harness

Your Price $4.99

Browse 1 question and 8 answers
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Why did you choose this?
Sonic Electronix Store
Included
J D on Sep 12, 2016
Got a new radio for my 1995 Miata
Michael D on Oct 20, 2015
Needed it for the stereo
Christy G on Jul 5, 2016
A harness for my car
Scott G on Oct 14, 2015

Product Summary

Manufacturer

Model Number

MA02B

UPC

033991590915

Weight

0.50lbs

Internal SKU

ma02b

Internal Product ID

4538

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: Scosche MA02B