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Scosche MA03B

Wire Harness to Connect an Aftermarket Stereo Receiver to Select 2000-Up Mazda Vehicles

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List price $19.99

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$5.99

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Arrives by Monday, Dec. 19 to zip 94107

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Scosche Audio Store

When replacing your factory radio with an after-market car stereo, the Scosche MA03B 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 MA03B, 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 MA03B 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 2000-up Mazda Vehicles

Not Sure Which Wiring Harness You Need?

Check the Scosche Vehicle Fit Guide to find the wiring harness for your vehicle!

Connections:

  • Yellow – 12V Constant
  • Red – 12V Accessory
  • Black - Ground
  • 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:

  • Mazda
    • 2001 626
    • 2013 CX5
    • 2007-2010 CX7
    • 2007 CX9
    • 2011 Mazda 2
    • 2004-2010 Mazda 3
    • 2006-2012 Mazda 5
    • 2009 Mazda 6
    • 2001 Millenia
    • 2002-2005 MPV
    • 2003-2006 Miata
    • 2001-2002 Protege
    • 2001 Tribute

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 2
Mazda 3
Mazda 5
Mazda 6
Mazda 626
Mazda CX-5
Mazda CX-7
Mazda CX-9

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
90%
4 Star
5%
3 Star
5%
2 Star
0%
1 Star
0%

Average Attribution Rating

Durability
4.9
Value
4.9
Features
4.7
Design
4.9
Usability
4.9
Jesse

Canada

Overall
Durability
Value
Features
Design
Usability
Great

June 16, 2014

This Harness works great. Makes the install easy and simple. I would recommend this for anyone. Go sonic Go

36 of 44 found this helpful

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Luis

Rochester, NY

Overall
Durability
Value
Features
Design
Usability
Wiring Harness That Works Like You'd Expect.

July 30, 2011

See title. Nuff said.

34 of 40 found this helpful

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Sammy

Round Rock, TX

Overall
Durability
Value
Features
Design
Usability
Scosche MA03B / MA03 Review

April 5, 2010

I've replaced 2 radios in my car and some for my friends' cars and I always bought a harness for each install. It saves so much time trying to figure out which wire is which while inside the car. And it's so much harder to solder the wires while in the car. I always wire the harness to the one that come with the radio and it'll make it plug and play.

I recommend anybody doing a radio install buy this harness. The time saved is well worth the 10 bucks. Good thing this came free with my radio. Thank you Sonic Electronix!!

34 of 40 found this helpful

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Edvada

Barbados

Overall
Durability
Value
Features
Design
Usability
Good Buy, very good product

October 4, 2011

Very good, saves a lot of cutting and splicing of wires. I found using this to install the Pioneer DEH 6300 UB deck in My Mazda 3 to be very easy.

33 of 40 found this helpful

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Lena

Brooklyn,NY

Overall
Durability
Value
Features
Design
Usability
Great products at great prices!

May 20, 2011

Fast order processing. Great prices. Now I know where to buy! Would recommend everybody.

33 of 40 found this helpful

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uriah

Omaha, NE

Overall
Durability
Value
Features
Design
Usability
easy to work with

January 5, 2015

Free and worked perfectly, Couldn't possibly ask for anything more.

32 of 39 found this helpful

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Hill

Tennessee

Overall
Durability
Value
Features
Design
Usability
Great great radio!

January 1, 2013

I really enjoy this radio. Ive had it for over 6 months now and Ive had no problems with it. It plays great music. I like that i can sync my iphone to it and play music right from my phone. Thats what i was looking for and I am very pleased with my purchase. It has a great display and I like that it even shows the music from my iphone.

32 of 39 found this helpful

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Jacob

Tukwila, WA

Overall
Durability
Value
Features
Design
Usability
Scosche MA03B / MA03

October 6, 2012

does what it says. better than using butt connectors! and makes removing head unit and replacing it much faster.

31 of 37 found this helpful

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Craig

Rowland Heights, CA

Overall
Durability
Value
Features
Design
Usability
MA03B

February 8, 2015

easy to connect to radio harness, no cutting of the factory harness.

31 of 38 found this helpful

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Robert

Saylorsburg, PA

Overall
Durability
Value
Features
Design
Usability
Makes wiring a breeze !

January 11, 2015

Really takes the guesswork out of hooking up your new radio. Just match the colors and plug it in. I'm fairly handy, but no electrical expert, and it couldn't have been easier. Definitely worth including as part of your installation.

31 of 38 found this helpful

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Colton

Point Roberts, WA

Overall
Durability
Value
Features
Design
Usability
easy to use

March 19, 2014

all I had to do is connect the wires then plug and play!

31 of 38 found this helpful

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Eric

Lodi, CA

Overall
Durability
Value
Features
Design
Usability
Perfect Fit !

February 22, 2011

Works perfect, very easy to install !

31 of 38 found this helpful

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Tajinder

visalia, CA

Overall
Durability
Value
Features
Design
Usability
TIME SAVER

September 8, 2009

WHAT CAN I SAY ITS A WIRING HARNESS. SAVES TIME WORTH THE CASH SHAVES OFF AT LEAST 30 MINUTES

30 of 36 found this helpful

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Kyle

Apple Valley, MN

Overall
Durability
Value
Features
Design
Usability
Very good.

October 4, 2011

This was easy to solder and installation was quick.

30 of 37 found this helpful

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Timothy

Ceres, CA

Overall
Durability
Value
Features
Design
Usability
Whats to say

July 28, 2010

It's an adapter, and it adapted my 04 Mazda 3's wiring to fit my DUAL deck. Job well done sir!!

30 of 37 found this helpful

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Joe

Englewood, NJ

Overall
Durability
Value
Features
Design
Usability
Worked Well

May 30, 2011

Instructions were basic but simple and easy to follow - matched right up to the new head unit I installed and connected flawlessly.

Installed on a 2002 Mazda Protege...

29 of 36 found this helpful

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gabriel

Puerto Rico

Overall
Durability
Value
Features
Design
Usability
Scosche MA03B / MA03 Review

December 20, 2008

Good quality item. It helps dramatically for installing an aftermarket audio system into your new car without damaging your OEM Harness. This means that if you want to switch to your original configuration, there is no need of spending hundreds in an original irreplaceable part.

29 of 36 found this helpful

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WeatherB

Canada

Overall
Durability
Value
Features
Design
Usability
Don't buy, missing two required cables

June 2, 2010

I bought this cable with my stereo system and was about to start the installation only to find out that the harness is missing two required cables, very disappointing. It is missing the orange illumination and white/blue remote amp wires. Weirdly enough the package lists these cables but my harness doesn't have them. The package lists 14 cables, I only have 12 cables. Grr.

28 of 35 found this helpful

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Johnny Blaze

Torrington, CT

Overall
Durability
Value
Features
Design
Usability
Worked like a charm

August 17, 2015

Title says it all. Got this for free with a Pioneer radio purchase and it works perfectly. No surprises, no hassles, easy connection. Thank you Sonic!!

10 of 13 found this helpful

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Marta

holyoke, MA

Overall
Durability
Value
Features
Design
Usability
Excelent product

March 15, 2016

this is a very good product, fits perfect to the car's connections.

0 of 0 found this helpful

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Items we think you might want
BOBAZT main
Scosche BOBAZT Stereo Connector Kit

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

Your Price $4.99

Browse 2 questions and 18 answers
Hide answersShow all answers | Sort by
Why did you choose this?
Sonic Electronix Store
they were free with my order and were specific to my vehicle.
Dillon M on Nov 28, 2016
it was free n reccomended
Triston J on Sep 9, 2016
I chose this because i need it to hook my aftermarket radio to my car.
corey m on Nov 15, 2016
to avoid cutting factory wires
MICHAEL A on Aug 21, 2016
does this kit work with the Bose amplifier??
bigwhite on Jul 25, 2015
Best Answer: Yes, if you have a 2009-2013 Mazda 2, 3, or 6.
Reply · Report · jonas z on Jan 18, 2016
· Add Answer · I Have This Question Too (0)

Product Summary

Manufacturer

Model Number

MA03B

UPC

033991992764

Weight

0.13lbs

Internal SKU

ma03b

Internal Product ID

4540

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 MA03B