How To Mazda 626 Stereo Wiring Diagram

Upgrading your Mazda 626 stereo system is a popular option for many owners and 626 enthusiasts. Whether you are installing a new stereo or upgraded speakers, our 626 stereo wiring can save you a lot of time and money. Working with your car audio speaker wires and radio can be difficult without the right wiring schematic. The functions and features of your Mazda 626 OEM stereo are becoming more and more complicated to work with. This is why our 626 stereo wiring guide can help you get the job done.

Today I’ll be showing you how to complete a 626 stereo install using this car audio wiring guide. No matter what kind of car stereo component you are installing this Mazda 626 stereo guide will show you what to do. From the factory stereo to your car audio speakers, tweeters or navigation, you’ll save time with our comprehensive 626 stereo wiring schematic.

Whether you are a professional stereo installer or DIY Mazda enthusiast, this car audio wiring guide has the info you need.

Today I’ll be walking you through all the year ranges of the Mazda 626 stereo wiring, beginning with the third generation and the model year of 1982.

Whenever you are upgrading your stereo, or even just installing a MP3 player, CD player or car audio crossover, the hardest part of the Mazda 626 install is identifying the wires.

Third Gen 626 Stereo Wiring 1982–1987

One of the earlier Mazda 626 stereo setups found on our wiring guide, the third generation used the typical single DIN configuration.

Car Radio Battery Constant 12v+ Wire: Blue/Red
Car Radio Accessory Switched 12v+ Wire: Blue/White
Car Radio Ground Wire: Chassis
Car Radio Illumination Wire: Red/Black

The early models did use an odd sized pocket which was larger than a typical double DIN stereo. The front Mazda 626 speakers were found in the front door panels. These speakers are 4″ in size and they can be tapped into the following speaker wire diagram below.
Left Front Speaker Positive Wire (+): Blue
Left Front Speaker Negative Wire (-): Blue/White
Right Front Speaker Positive Wire (+): Blue/Yellow
Right Front Speaker Negative Wire (-): Blue/Red
Left Rear Speaker Positive Wire (+): Blue/Red
Left Rear Speaker Negative Wire (-): Blue/Yellow
Right Rear Speaker Positive Wire (+): Blue/White
Right Rear Speaker Negative Wire (-): Blue/Green

Fourth Gen 626 Stereo Wiring 1987–1992

Changes to the next generation of Mazda sedan changed the way you complete any Mazda 626 stereo install. There are several changes in this year range. One of the things that stayed is the standard single DIN configuration and for most removable faces you will require new Mazda stereo mounting brackets.

Mazda 626 Radio Battery Constant 12v+ Wire: Blue/Red
Mazda 626 Radio Accessory Switched 12v+ Wire: Blue/White
Mazda 626 Radio Ground Wire: Chassis
Mazda 626 Radio Illumination Wire: Red/Black
Left Front Speaker Positive Wire (+): Blue
Left Front Speaker Negative Wire (-): Blue/White
Right Front Speaker Positive Wire (+): Blue/Yellow
Right Front Speaker Negative Wire (-): Blue/Red
Left Rear Speaker Positive Wire (+): Blue/Red
Left Rear Speaker Negative Wire (-): Blue/Yellow
Right Rear Speaker Positive Wire (+): Blue/White
Right Rear Speaker Negative Wire (-): Blue/Green

Fifth Gen 626 Stereo Wiring 1992-1997

The climate controls made the move above the Mazda stereo in this year range. This makes upgrading your Mazda 626 stereo more difficult if you have a motorized face or flip up screen. New Mazda 626 stereo mounting hardware will be needed to ensure that the your screen will not run into the climate controls or the Mazda dashboard.

Car Radio Battery Constant 12v+ Wire: Blue/Red
Car Radio Accessory Switched 12v+ Wire: Blue/White
Car Radio Ground Wire: Chassis
Car Radio Illumination Wire: Red/Black

The front Mazda 626 speakers can be upgraded to 6″ x 9″ from the standard 5″ x 7 ” inch speakers. These are mounted into the doors and can be accessed through the Mazda 626 stereo wiring guide below.
Left Front Speaker Positive Wire (+): Blue
Left Front Speaker Negative Wire (-): Blue/White
Right Front Speaker Positive Wire (+): Blue/Red
Right Front Speaker Negative Wire (-): Blue/Yellow
Left Rear Speaker Positive Wire (+): Blue/Red
Left Rear Speaker Negative Wire (-): Blue/Green
Right Rear Speaker Positive Wire (+): Blue/White

Sixth Gen 626 Stereo Wiring 1997–2002

The last model of Mazda 626 also went through several upgrades to the interior. You can easily upgrade the Mazda 626 stereo by installing a single DIN stereo and a DIN sized pocket.

Car Radio Battery Constant 12v+ Wire: Blue/Red
Car Radio Accessory Switched 12v+ Wire: Blue/White
Car Radio Ground Wire: Chassis
Car Radio Illumination Wire: Red/Black

Depending on the model of your Mazda 626, your stereo system may come with the optional Bose sound system. This will typically include a double DIN factory stereo and a CD changer that’s mounted in the trunk. Eliminating the double DIN OEM radio is easy to do, from there you can use an install kit to mount your single DIN stereo.

Left Front Speaker Positive Wire (+): Green/Orange
Left Front Speaker Negative Wire (-): Green/Black
Right Front Speaker Positive Wire (+): Green
Right Front Speaker Negative Wire (-): Yellow/Green

Accessing the rear speakers is easy to do, and upgrading them will require access to the rear deck. When choosing to wire up your own Mazda 626 stereo, you can use this 626 Stereo Wiring car audio guide to do it.

Left Rear Speaker Positive Wire (+): Blue/Green
Left Rear Speaker Negative Wire (-): Blue
Right Rear Speaker Positive Wire (+): Blue/Black
Right Rear Speaker Negative Wire (-): Blue/Orange

Whether your Mazda 626 stereo is a Bose unit or not, this guide has the information you need. Our collection of car wiring diagrams can show you how to save time and money, and are provided “as-is” with no warranty implied.

Have any questions about your Mazda 626 stereo wiring diagram? Leave them for us below and let us know!