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2002-2004 Ford Explorer

2002 • 2003 • 2004

Ford Explorer

In a Nutshell

This article discusses how to install car audio gear in your Explorer. Check it out and then use our vehicle selector to find audio gear that will fit your car.

Due to the easy-to-remove factory system, your new stereo is really only limited by your budget. Anything fits, from a simple CD player to a top-of-the-line DVD receiver with navigation. Throw some new speakers in the doors, and you'll be amazed at the difference they make when fed the improved power from your new radio.

As one of the original Kid Taxis, the Explorer offers an available third row of seats. Improving the A/V gear make it the perfect SUV to carry the family. Adding an in-dash stereo with a monitor and an optional rear-view camera helps you stay safe and steer your SUV out of tight spots.

If you're mostly using your Explorer to haul gear rather than kids, you can still have an amazing system without sacrificing square footage - look for amps with small footprints to fit in the out-of-the-way spaces in your cargo area.

Full Story

Overview of the Ford Explorer

One of the longest-running sport utility nameplates on the road, the Ford Explorer is a classic. These days it does way more than haul kids to soccer practice — over the years Ford has added all sorts of options, including several for the SUV's stereo system. This version of the Explorer was sold with two audio options:

  • the standard system — an AM/FM/CD/tape player with speakers in the front and rear doors;

  • the Mach system — adds a 6-disc in-dash CD changer with an upgraded set of speakers and a powered subwoofer tucked into the cargo area.

Both of these systems are easy to replace, or improve with simple add-ons to give you modern amenities like Bluetooth® and navigation.

This article is an overview of your vehicle's audio system and its upgrade options. Looking for step-by-step instructions on installing a car stereo or speakers in your Explorer? We'll include a Crutchfield MasterSheet™ free with your Crutchfield order, or you can purchase one for $9.99.
Ford Explorer factory radio

The standard Ford AM/FM/CD/cassette radio (Crutchfield Research Photo)

Factory stereo system

The Explorer was available with a vast array of option packages, so it's no surprise that it was also available with two different factory stereo systems.

Ford Explorer Mach radio

This is the Ford radio for the Mach system (Crutchfield Research Photo)

Replacing your factory radio

Here's a quick look at what needs to be done to replace the Explorer's factory radios:

Standard system

The factory radio is easily removed, and you'll find adapters that'll make almost any stereo fit in its place. You'll need a mounting kit to trim out the new radio, along with a wiring harness that allows you to connect your new radio without having to cut the factory wiring Crutchfield includes these installation parts at a very nice discount with your stereo gear, along with our free step-by-step instructions for your Explorer.

Tools needed: Small Phillips screwdriver, 7mm driver, panel tool.

Aftermarket radio kit for the Ford Explorer

This kit holds a DIN-size radio, plus there's a storage pocket (Crutchfield Research Photo)

Mach system

The factory radio in the Mach system routes the proper signals to the Ford speakers and subwoofer. If you're keeping the Mach speaker system, then you'll want to buy a car stereo with a high-pass filter so you can remove the low bass from the factory speakers, and a dedicated subwoofer output that will allow you to control the factory sub. The wiring harness that helps you install a new stereo in this Explorer uses RCA connectors to connect to the Ford sub.

Tools needed: Small Phillips screwdriver, 7mm driver, panel tool

Steering wheel audio controls

It's relatively easy to retain the steering wheel audio controls when you install a new stereo in your Explorer. When you enter your vehicle information, our database will choose the adapter you need to make your factory steering wheel controls work with your new receiver.

Ford Explorer front door speaker in standard system

A front door speaker in the Explorer's standard system (Crutchfield Research Photo)

Replacing your factory speakers

You'll have lots of options when you replace your Explorer's factory speakers.

Standard 4-speaker system

Most Ford vehicles are equipped with 6"x8" speakers, and the Explorer is no exception. You'll find a full-range speaker in each front and rear door, and your options for aftermarket speakers are nearly unlimited. You'll find 6"x8" speakers that fit right into the factory speaker locations, and you can also drop 5-1/4" speakers in there with the help of adapter plates.

It's a good idea to get speaker harnesses for your new speakers. They'll allow you to attach the new speakers to the plugs that connect to the Ford factory speakers, and they make it easier to reinstall the factory speakers if you ever sell your Explorer. Crutchfield includes adapter plates (if needed) and speaker wiring harnesses at a deep discount with every speaker order.

ford explorer rear door speaker

The rear door speakers aren't hard to replace (Crutchfield Research Photo)

You'll have to remove the door panels to access the speakers in both the front and rear locations, but it's a relatively simple procedure. A speaker upgrade is a quick and easy way to improve your sound.

Tools needed: Flat blade and Phillips screwdrivers, panel tool, 7/32", 6mm drivers

ford explorer front door speaker in Mach system

The plate-style front door speaker in the Mach system (Crutchfield Research Photo)

Mach speaker system with sub

You'll find a plate-style speaker with a separate 1" tweeter and 5" midrange speaker in the front doors, and a full-range speaker in each rear door. Some manufacturers offer 6"x8" plate speakers that will make a nice replacement options up front, but just about any full-range 6"x8" will fit in those doors.

Tools needed: Flat blade and Phillips screwdrivers, panel tool, 7/32", 6mm drivers

Ford Explorer factory sub in Mach system

The 8" factory sub in the Mach system (Crutchfield Research Photo)

Bass in your Explorer

There are lots of different ways to bring more and better bass to your Explorer.

4-speaker system

Several manufacturers make enclosures that fit in the rear cargo area on the driver's side of the Explorer, so it's easy to add bass to the standard system. To make real noise, there's plenty of room in the cargo area of the Explorer, especially if you don't have a third-row seat, and several compartments in panels and underneath floorboards to tuck amps. Consider a custom-made subwoofer enclosure to get a perfect fit and save space — several companies make them, and they're available with or without subs and amps.

Ford Explorer factory sub and amp

A close-up look at the Explorer's factory sub and amp (Crutchfield Research Photo)

Mach system

The Mach stereo system includes an 8" subwoofer and amplifier (60W + 60W to a 1.2-ohm dual voice coil sub) tucked into a special enclosure behind the trim in the rear passenger compartment. A couple of aftermarket subs will fit in the factory enclosure, and can be powered by the factory amp. Because of the low impedance of the factory sub, we really don't recommend going this route without replacing the factory amp too.

You'll find plenty of sub enclosures designed to fit your Explorer without costing you cargo space. If your Explorer doesn't have rear A/C, you can install a custom-fit JL Audio Stealthbox enclosure that replaces the driver's side rear side panel.

Note: The Ford radio in the Mach system eliminates low bass from the main speakers, so they sound better. If you're keeping your factory radio, you can't tap into the front and rear speaker wires to get a signal for your sub amp. You'll have to tap into the sub signal after the Ford's factory amp.

Tools needed: Panel tool, T47 Torx bit, 7mm and 10mm drivers

JL Audio Stealthbox Ford Explorer

The JL Audio Stealthbox is made to fit right into the Explorer.

Other options for your Explorer

With a vehicle like the Explorer, there are lots of ways to upgrade your entertainment.

Rear seat DVD system

If you have a factory DVD system in your Explorer, it will no longer work when the stereo is removed, because the DVD's power runs through the factory head unit. It's not hard to re-route power to the rear DVD system should you want to keep it, but it's also very easy to add an aftermarket DVD system with everything from ceiling-mounted monitors to replacement headrests that include screens and built-in DVD players.


The optional Mach system includes a small amplifier that powers the subwoofer in the Explorer's cargo area. The Ford amp is powerful enough to power some aftermarket subs (like the Kicker Comp), but if you want real power, you need an aftermarket amp. You'll find plenty of great spots to mount amplifiers in the Explorer — consider the extra spaces under the floor in the rear of the SUV, under seats or behind interior panels. Remember to consider the size of the amp and that it will need air for efficient operation.

Satellite radio

Ford didn't offer satellite radio during these model years, so you won't have to worry about losing it when you replace your stereo. If you want to add SiriusXM satellite radio, it's a simple add-on, ranging from removable tuners that easily move between cars, to dedicated tuners that are controlled through compatible aftermarket stereos.

Rear-view cameras

The Explorer is a big vehicle, and maneuvering in a crowded parking lot can be a huge challenge. If you want a better view of what's behind you, we offer rear-view cameras from Kenwood, Alpine, Sony, Pioneer, and more. Some are designed to work with same-brand receivers only, but others come with a composite video connector and will work with almost any video receiver.


Installing a security system in your Explorer isn't easy (security systems rarely are), but it's definitely a good idea. Our Crutchfield Advisors can help figure out what you need to get the job done, but we usually recommend taking your car and new gear to a professional installer.

Shop for car security systems for your Ford Explorer

Find the audio gear that fits your car or truck

Visit our Outfit My Car page and enter your vehicle information to see stereos, speakers, subs, and other audio accessories that will work in your vehicle.

  • Tom Watson

    Posted on 6/1/2018

    I've got an Alpine stereo, and was wondering if the steering wheel controls can be made to work?

  • Jon Paulette from Crutchfield

    Posted on 3/13/2018

    Alisha, That's worth an actual conversation. If you bought your gear from Crutchfield, you can call Tech Support for free help troubleshooting your system. If you purchased your equipment elsewhere, you can still get expert Crutchfield Tech Support - 90 days-worth for only $30. Check out our tech support page for details.

  • Alisha from Oceana

    Posted on 3/13/2018

    I installed my new aftermarket pioneer stereo and there was two connectors on my factory stereo but my pioneer only has one. Now my speakers are not working in front and left rear. What went wrong??

  • Jon Paulette from Crutchfield

    Posted on 2/26/2018

    Mamoa, Those old speakers might be on their last legs, but it's more likely related to the wiring connections. If that's definitely not it and you bought your gear from Crutchfield, you can call Tech Support for free help troubleshooting your system. If you purchased your equipment elsewhere, you can still get expert Crutchfield Tech Support - 90 days-worth for only $30. Check out our tech support page for details.

  • Mamoa Teller from Los angeles

    Posted on 2/26/2018

    I have an AM pioneer head unit, with an adapter and stock speakers. Was working fine for 2 years and now my rear speakers have no audio. Checked the wiring in back door and pulled out head unit to inspect the wiring behind it and nothing looks tampered with or changed. Could both speakers have blown out or could the head unit be giving out? Nothing has changed. 2004 explorer XLS no mach system installed .

  • Jon Paulette from Crutchfield

    Posted on 5/1/2017

    Misael, The harness you need is available at a nifty discount when you order your stereo at Crutchfield. I've sent your question to our sales team, and they'll be contacting you via email soon. For immediate help, you can contact them via phone or chat.

  • Misael Garcia from Arkansas

    Posted on 4/30/2017

    Wannna change the stereo on my 2004 explorer to a pioneer stereo will that still work with the Mach system and wanna keep using the steering wheel controls for the radio how do I go by doing that where could I get the hardness

  • Jon Paulette from Crutchfield

    Posted on 4/20/2017

    Hannah. If you want to enjoy music that's stored on your phone or another device (which I'm kinda guessing you are), you have some options. Give us a call and talk to one of our expert advisors. We'll help you find a solution that works for you and your truck.

  • Hannah

    Posted on 4/19/2017

    I have a 2004 Eddie Bauer edition with a 6 disc cd player. It has the option for cd/aux but there is no aux input. I can't find anything on a compatible adaptor for an aux cord?

  • Jon Paulette from Crutchfield

    Posted on 1/9/2017

    Jason, A double-DIN will work nicely in the Explorer's dash. When you enter your vehicle's info into our Outfit My Car tool, you'll see which stereos fit your car, plus the correct harness. If you have any questions, our advisors are available via phone or chat.

  • Jason from Danville

    Posted on 1/8/2017

    Will an 03 Ford explorer hold a double din stereo?

  • Jon Paulette from Crutchfield

    Posted on 11/22/2016

    Joe, If you bought your gear from Crutchfield, you can call Tech Support for free help troubleshooting your system. If you purchased your equipment elsewhere, you can still get expert Crutchfield Tech Support - 90 days-worth for only $30. Check out our tech support page for details.

  • Joe from Hobart,IN

    Posted on 11/21/2016

    I would like to keep the Mach system and I just purchased the Scosch line output converter from Crutchfield but I have no clue as to how to wire it to work with an external amp and subwoofer.

  • Jon Paulette from Crutchfield

    Posted on 11/16/2015

    Good point, Rob. We knew that! Seriously, we did.... We just didn't mention it in the Vehicle Profile -- until now, anyway. Input from readers like you will make these articles even better, so thanks for bringing this up!

  • Rob T from Aransas Pass

    Posted on 11/15/2015

    Explorers with rear a/c cannot add a sub on the driver-side cargo area

  • Jon Paulette from Crutchfield

    Posted on 10/5/2015

    Walter, Though we describe this job as "not hard" in the article, some explanation will probably make it a lot easier. If you bought your gear from Crutchfield, you can call Tech Support for free help troubleshooting your system. If you purchased your equipment elsewhere, you can still get expert Crutchfield Tech Support - 90 days-worth for only $30. Check out our tech support page for details.

  • Walter Campbell from Clear Brook

    Posted on 10/4/2015

    How do I re-route the power supply for the factory DVD system?

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