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How To Chevy Blazer Stereo Wiring Diagram

Blazer stereo wiring

One of the most popular Chevy trucks of all time, the Chevy Blazer is also known as the S-10 or S-10 Blazer. When you want to give your Blazer stereo a boost, using our Blazer stereo wiring can save you time and money. Instead of wasting time tracking down Blazer speaker wires or outputs, you can reference this stereo wiring schematic instead.

That’s the beauty of this wiring guide. It doesn’t matter if you are doing this work in your driveway, or if you work for a professional stereo installer. The information in our Chevy Blazer stereo wiring guide can show you what wire goes to what, and how to install any aftermarket stereo.

That’s not everything that our Blazer stereo wiring guide is good for however. No matter what year or model of your Blazer, we’ve got the wiring information you need to upgrade your stereo fast. Because the Chevy Blazer can be called many different names, it’s important you have all the stereo wiring information you can get your hands on.

Complete Chevy Blazer stereo wiring Guide

As we said before, the Chevy Blazer can come under several different names. The original Blazer ranged from the years of 1982-1994 and was often called the 4WD T-10. This truck was also rebadged and sold as the GMC S-15 Jimmy. From 1995 to 2005 or so the Chevy Blazer has not changed much.

Are you sick and tired of your Chevy Blazer speakers or your stereo? Want to add a touch of modern or even an infotainment system to your Blazer? Look no more than our comprehensive Chevy Blazer stereo wiring guide.

First Generation Chevy Blazer stereo wiring Schematic – 1982-1994

Chevy Blazers were quite the innovative SUV for it’s time. Not to be confused with the S-10 pickup, upgrading the Blazer stereo is an upgrade many users complete.

The front Blazer speakers for this generation measure 4×6. These units are mounted into your Blazer dashboard. For anyone looking to upgrade their 6×9 Blazer speakers in back, you’ll need to access the rear side panels.

Car Radio Battery Constant 12v+ Wire: Orange
Car Radio Accessory Switched 12v+ Wire: Yellow
Car Radio Ground Wire: Black
Car Radio Illumination Wire: Gray
Car Stereo Dimmer Wire: Brown
Car Stereo Antenna Trigger Wire: Pink
Left Front Speaker Positive Wire (+): Tan
Left Front Speaker Negative Wire (-): Gray
Right Front Speaker Positive Wire (+): Light Green
Right Front Speaker Negative Wire (-): Dark Green
Left Rear Speaker Positive Wire (+): Brown
Left Rear Speaker Negative Wire (-): Yellow
Right Rear Speaker Positive Wire (+): Dark Blue
Right Rear Speaker Negative Wire (-): Light Blue

When upgrading the Blazer stereo in your Chevy, you will definitely need a mounting kit. Stereo installation kits are cheap and comes with all the mounting hardware required to install a Blazer sound system.


Of course when you are upgrading your Blazer speakers, you should always make sure that you buy the right amplifier. Installing an amplifier into your Blazer can be very easy if you have our Chevy Blazer stereo wiring guide.

Wondering why you don’t see the information for your Blazer stereo wiring? If you happen to own a Blazer built after 1994, you’ll need this wiring schematic below.

Second Generation Chevy Blazer stereo wiring guide – 1995-2004

Owners of this year range Blazer enjoy quite a few features that the previous model didn’t have. One was the obvious inclusion of GM Bose components, giving the Blazer a better sounding stereo. The other of course was the instant gratification that Blazer owners had in relation to their dashes.

For many years the interior of the Chevy Blazer was known to the biggest detraction from the highly accomplished truck. As you can see in the above image, most Blazer stereo upgrades will require a mounting kit.

These mounting kits are easy to use and install. They cover up the gaps surrounding the difficult to work with Blazer dash and make your stereo fit just right. What’s more if you own a double DIN stereo or flip up unit, these mounting kits can help you get the job done right.

Car Radio Constant 12v+ Wire: Orange
Car Radio Switched 12v+ Wire: Dark Green
Car Radio Ground Wire: Black
Car Radio Illumination Wire: Gray
Car Stereo Dimmer Wire: Violet/White
Left Front Speaker Positive Wire (+): Tan
Left Front Speaker Negative Wire (-): Gray
Right Front Speaker Positive Wire (+): Light Green
Right Front Speaker Negative Wire (-): Dark Green
Left Rear Speaker Positive Wire (+): Brown
Left Rear Speaker Negative Wire (-): Yellow
Right Rear Speaker Positive Wire (+): Dark Blue
Right Rear Speaker Negative Wire (-): Light Blue

Want to learn more about upgrading your Chevy Blazer stereo?? Use our handy Chevy Blazer stereo wiring guide to get the job done fast. For all the latest and greatest in automotive news and updates, make sure to follow us at My Pro Street

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