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2003-2007 Honda Accord sedan

2003 • 2004 • 2005 • 2006 • 2007


Buck Pomerantz

Buck Pomerantz was born and raised in Philadelphia. His parents bought their first television set when he was born. He figured out how to run it by the time he was two. Besides athletics, his formative interests included electronics, amateur radio, music, and stage crew work. He got his BA in writing from Brown University. Then he joined a rock 'n roll band as their soundman and moved to Charlottesville, Virginia. After that venture failed, he spent time in Boston, New Orleans, and Berkeley. He worked in a music store in Austin manufacturing, installing, repairing, and operating sound systems for recording studios, clubs, and bands. He moved back to Charlottesville, ran a little recording studio and finally joined Crutchfield as a copywriter. He has 2 grown children and 3 grandchildren, but after a good nap he can still rock out.

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2003 Honda Accord EX Sedan

Overview of the Honda Accord

The Honda Accord sedan has long been the poster child for what the automotive industry does right. It's attractive, comfortable, safe, reliable, and known for maintaining a high resale value. Most people keep their Honda Accords for a long time, so it makes sense to upgrade the stereo system.

Factory stereo system

Honda claims six speakers — two of them are tweeters — and 120 watts of power for the Accord’s sound system. The reality is that it's powered by a low-output Honda radio (roughly 10 watts RMS  x 4 channels) that, along with the speakers, could stand a lot of improvement.

This article is an overview of your vehicle's audio system and its upgrade options. If you're looking for step-by-step instructions on installing a car stereo or speakers in your Accord, we'll include a Crutchfield MasterSheet™ free with your Crutchfield order, or you can purchase one for $9.99.

Accord factory radio

The Accord's factory radio (Crutchfield Research Photo)

Replacing your factory radio

There's plenty of room behind the dash, so a wide variety of receivers will work in the Accord. If you don't have the dual climate controls, you have a choice on how to install a new car stereo in your dash. You can use a simple dash kit to put the radio in the factory pocket below the existing radio, or you can purchase a more sophisticated adapter that replaces the entire climate control/radio pod. The adapter houses the new radio, and retains heating, ventilation, and air conditioning  controls in vehicles with either single- or dual-zone climate control systems.

You can use our Outfit My Car tool to see which stereos fit your car and get some info on what else is needed for the installation.

Dash opening

The factory stereo removed (Crutchfield Research Photo)

It may seem intimidating taking the dash apart from the gear shifter all the way up to the AC vents but, by following the step-by-step instructions in your free Crutchfield MasterSheet™, you’ll find it’s not that complicated.

You remove the factory radio/changer, only to unplug its car harness and antenna. Then, you drape those cables down to where the new receiver’s going and put the radio and dash back together, replacing the old storage bin with the new dash kit, which has a small storage shelf of its own. Once all that's done, you can install a single-DIN sized (2" tall) aftermarket receiver into the opening provided.

Honda Accord radio code

You will need the factory radio security code if radio power is interrupted and the factory radio is re-installed. Honda usually includes this code on a card in the owner's manual. If you don't have that card, you'll have to talk to your local Honda dealer. Also, you'll lose your Honda's satellite radio capability when you replace the radio, but there are plenty of aftermarket solutions for that problem.

Accord stereo with navigation

Accord stereo with navigation (Crutchfield Research Photo)

If you have the factory navigation receiver, you'll have to enter two codes if the power is disconnected: one for the navigation system and one for the audio system. Once these codes have been correctly entered, the entire system will be unlocked and ready for use.

Tools needed: A Phillips screwdriver, a small flat-blade screwdriver, and a panel removal tool.

Steering wheel audio controls

It's relatively easy to retain your Accord's steering wheel audio controls when you install a new stereo. 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.

Shop for car stereos that fit your Honda Accord DX

Replacing your factory speakers

Depending on the options package, the Honda Accord will have speakers in the doors, the dash, and the rear deck.

Factory tweeter location

Factory tweeter location (Crutchfield Research Photo)


The "6-speaker system" includes two tweeters mounted in the upper corners of the dash. The only tool you’ll need to install new tweeters is a flat blade screwdriver, but you’ll need to use our Universal Backstraps or some other way to secure your new tweeter in the factory grille assembly.

You’ll also need Posi-Products speaker connectors to connect them to the factory wiring, because there’s no tweeter harness available. The factory tweeter has its crossover built-in, so the simplest way to replace them would be with one that also has its crossover built-in.

If you are adding components, it would be best to put the crossovers near the radio.  Connect the front door speaker leads to the woofer output on the crossover network, and then run new speaker wire from the crossover to the tweeter.  This keeps you from having to pull a new wire through the Molex plug in the door jamb, which on most Hondas is nearly impossible.

Tools needed: flat blade screwdriver

honda accord front door

The Accord's front door speakers are easy to deal with (Crutchfield Research Photo)

Front door speakers

The plastic-framed factory 6-1/2" speakers unclip easily enough from the door frames, but you'll need to drill new mounting-screw holes into the door steel to install any new speakers. Aftermarket options include 5-1/4" and 6-1/2" speakers.

Both sizes require adapter brackets. Speaker harnesses are available for all locations in the Accord except the tweeters. These will let you connect your new speakers to the car’s harnesses without cutting or soldering wires.

These brackets and harnesses are available at a very nice discount when you order from Crutchfield.

Tools needed: Phillips screwdriver,  small, flat-blade screwdriver, panel tool, drill and 1/8" bit

Honda Accord rear deck speaker

The Accord's rear deck speakers (Crutchfield Research Photo)

Rear deck speakers

The rear deck 6"x9" speakers are much easier to replace. There's plenty of room there, so most aftermarket 6"x9" speakers will fit, and you have the option of installing 5-1/4" and 6-1/2" speakers with the help of mounting brackets.

Tools needed: Panel tool, socket wrench, 8 mm socket

Shop for speakers that fit your Honda Accord DX

Honda Accord rear deck

You can replace the rear deck speakers with subs (Crutchfield Research Photo)

Bass in your Accord

The factory system, at least, can really do with the additional bass a subwoofer provides. The roomy trunk offers plenty of space for a sub, enclosure, and amplifier. And you can also consider small powered subs that'll fit under the front seat.

Another solution is to replace the rear deck speakers with 6-1/2" or 6"x9" subs, for a stealthy way to get bass. If you choose this option, make sure you use plenty of Dynamat or another noise-dampening material on the back deck. This material will keep the deck from rattling and buzzing when the small subs start pumping out lots of bass.

Shop for vehicle-specific subwoofers for your Honda Accord DX

Other options for your Accord

There are plenty of options available when you decide to take your Accord to a whole new level.

Keep the factory radio

If you want to leave your Honda’s radio connected, you can still add features like Bluetooth® and iPod® connectivity by way of accessory adapters and harnesses that hook in behind the factory radio. Some Hondas come with XM Radio built-in, and you'll lose that if you replace your radio. If you're a satellite radio addict, pick a new car stereo that supports SiriusXM so you can keep listening to your favorite channels.

Security and remote start

Installing a security system in your Accord isn't easy (security systems rarely are), but it's less complicated than it could be. 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 Honda Accord DX

Step-by-step upgrades for your Honda’s sound system

The great thing about upgrading car audio is that you don't have to do it all at once. You can replace your car's old audio gear as your time and budget allows.

First, the speakers

Replacing the speakers brings immediate improvement to the sound. The easiest way is to replace the front door speakers with coaxial, full-range speakers. But your best choice is to replace your four front speakers with separate woofers and tweeters, as these component speakers will help you achieve superior presence and stereo soundstaging.

Add an amplifier and subwoofer

An aftermarket amp driving new speakers will really bring impact and excitement to the ride. If you're keeping your factory radio, pick an amp with speaker-level inputs so you can tap into the factory radio’s harness to get signal. You can also use a line output converter to prep the signal for an amp that just offers preamp inputs.

Replace the radio

When it comes to serious playtime, you’ll want a receiver that can keep up with all the different media you’ll want to feed it, and give you more than the typical treble and bass controls. Many high-end receivers now come with time alignment and automatic EQ features that can bring breathtaking stereo imaging to your on-the-road listening. And, of course, they're ready for digital media, Internet radio streaming, and much more.

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.

Last updated May 12, 2016
  • Steve from 28164

    Posted on 4/30/2015 6:37:00 AM

    Is it possible to add a Aux/MP3 port to a 2007 Honda Accord Coupe? It currently has the standard factory radio/single CD. A friend tried & said it couldn't be done. If so what do I need to do so. Thanks

  • Jon Paulette from Crutchfield

    Posted on 4/30/2015 1:48:18 PM

    Steve, There are adapters available that can will allow you to add a port to your receiver. To search online, enter your vehicle info into the "Outfit My Car" feature on our homepage. Or, you can call or chat with one of our expert advisors.

  • Jeremy

    Posted on 5/3/2015 5:05:08 AM

    Is it possible to find a dash kit for this car that doesn't install the radio in the lower dash pocket. I like the way Honda set up the stereo but i just want to upgrade it keeping the reciever in the higher level dash and having the pocket at the lower level

  • Jon Paulette from Crutchfield

    Posted on 5/4/2015 12:03:27 PM

    Jeremy: Because the climate controls and receiver are so completely integrated in your Accord, the available dash kits are designed to fit beneath that assembly. There is, however, the Metra 88-00-7803 Dash Pocket, which replaces the entire assembly in Accords that don't have factory nav. If you have any questions, just contact our sales team via phone or chat.

  • Lucas from Canada

    Posted on 5/17/2015 8:23:41 PM

    I installed an alpine aftermarket deck beneath the factory head unit in my 03 accord, is there a way to feed power to both of them? because currently only the alpine is powered and id like the factory unit to light up so i could see the buttons for climate control, thanks.

  • Jon Paulette from Crutchfield

    Posted on 5/19/2015 5:17:05 PM

    To get your climate controls to work properly, you'll need some additional gear. Our Vehicle Selector will help you find the right mounting kit and wiring harness for your car. You'll have to reinstall your new receiver, but the improvement in functionality will be totally worth it. Good luck!

  • Benjamin from south dakota

    Posted on 6/7/2015 3:16:40 AM

    I recently replaced all 6 speakers in my 2005 Accord. I am now looking at installing an amplifier but I am not sure how, what kind to get, or if I even need one at all. Please help!

  • Jon Paulette from Crutchfield

    Posted on 6/8/2015 11:09:39 AM

    Sounds like an excellent plan. Our car amplifier buying guide is the best place to get started. If you have any questions, just give us a call!

  • Steve from Poquoson, VA

    Posted on 6/22/2015 12:25:51 PM

    My 2004 Honda Accord radio's backlight has gone out therefore I cannot see any of the radio settings, a/c setting etc. This is a know issue that Honda addressed up until 2011, now apparently it's all on the owner. My ? is what radios are compatiable with mine ? On the faceplate is stamped RBK1. Apparently there are 50 (maybe not that many but it seems like it) different varations of this model, that I've found on ebay and amazon I just don't know which one I can use. On the back of my radio / faceplate there are 2 green connector up high, 1 black and 1 white connector down low. Any assiatance would be greatly appreciated.

  • Jon Paulette from Crutchfield

    Posted on 6/23/2015 9:17:23 AM

    Steve, If you're looking to replace the old radio with a "new-to-you" model, you might want to visit some Honda owners' forums online. There's a ton of community knowledge about these cars, so if this is a known issue, someone has undoubtedly tried this swap before. Good luck!

  • Gregory Stavrou from United States

    Posted on 7/8/2015 5:57:48 PM

    Hello, I just replaced the factory rear speakers on my 2005 Accord EX and i tried installing back the old grills, but it seems that they wont go all the way down, any thoughts on how to fix this? note that the new speakers did bring their own grill but i tried placing them and no go. Thoughts?

  • Jon Paulette from Crutchfield

    Posted on 7/9/2015 9:43:59 AM

    Gregory, It sounds like the tweeter structure might be too high. This car only has a 1/2" mounting height clearance, and most speakers are taller than that. If you bought your speakers at Crutchfield, call our tech department for advice. You also might be able to exchange them for something that fits better. Good luck!

  • Manny from Elizabeth

    Posted on 10/28/2015 10:37:58 AM

    I am a little confused. If i want to replace back speakers in my 05 honda accord whats my best choice?

  • Jon Paulette from Crutchfield

    Posted on 10/28/2015 12:01:05 PM

    Manny, Once you know you want speakers, the next step is to find out which speakers you want. You can use our vehicle selector to see which speakers fit your Accord and get some info on what else is needed for the installation. If you have questions, just give us a call!

  • Jason Nortey from Milton Keynes, UK

    Posted on 10/31/2015 7:39:50 PM

    Hi. I am about to install a Pioneer Single Din head unit in the lower portion of my dash. Unfortunately people have not been clear about certain possibilities. My car is a 2003 Accord Tourer with Premium Sound and OEM subwoofer in the trunk. Here are my questions. 1. As my car has a factory amp, do I feed it with low level (From RCA), or just straight from the high levels ie wire it just like any ordinary aftermarket upgrade. 2. I'm assuming my OEM radio will function, but there just will not be any sound. 3. I'm planning on leaving my OEM speakers in for now. Do you know how the stock amplifier is located and configured? Many thanks. Jason.

  • Jon Paulette from Crutchfield

    Posted on 11/2/2015 9:53:24 AM

    Jason, While we're reasonably sure that the UK and US versions of the Accord have a lot in common, we're not absolutely positive enough to answer your questions. If you poke around some UK Honda forums, though, you'll probably find someone who can help you out. Good luck!

  • paul

    Posted on 11/5/2015 10:49:26 AM

    I have successfully added an aftermarket stereo below the original stereo. and kept the climate controls working with the original stereo. but i want to replace the car with one with the built in navigation. Can I keep the navigation working and have an aftermarket stereo running?

  • Jon Paulette from Crutchfield

    Posted on 11/5/2015 11:28:28 AM

    Paul, If you replace the factory radio, the factory navigation system won't work anymore. But there are a number of aftermarket nav radios that will fit, and they're a lot more up-to-date than the factory models.

  • Justin medellin from victoria, tx

    Posted on 11/22/2015 7:01:34 PM

    Hi. I'm looking at an 05 accord dx but I've read they only come with 2 door speakers and no rear deck or front dash speakers? Is this true? Is it difficult to add rear deck speakers? I'm wondering why they wouldnt put speakers in the rear deck being a 2005 model and all. Thanks.

  • Jon Paulette from Crutchfield

    Posted on 11/23/2015 9:49:36 AM

    Justin, The Accord DX has a pair of 6"x9" speakers in the rear deck. There's plenty of room there, so most aftermarket 6"x9" speakers will fit right in. You also have the option of installing 5-1/4" and 6-1/2" speakers with the help of mounting brackets.

  • Mark B from Prescott, AZ

    Posted on 12/4/2015 8:13:10 AM

    do any under seat powered subs fit under the driver seat of an 05 accord coupe?

  • Jon Paulette from Crutchfield

    Posted on 12/4/2015 9:02:46 AM

    Mark, That solution will totally work in your car. I'll send 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.

  • Liza

    Posted on 1/27/2016 11:03:33 PM

    Hi i would like to replace my 06 accord factory radio with a factory radio that has touch screen and double din. My radio face plate id is 7FK0, I have found multiple face plates i just dont know if they will fit. The 5th digit in my vin is M and the 2ck4 says that will fit. It is just alot of money to be guessing if it does not fit. Can you please lend some advise or lead me in the right direction. Thank you for your time.

  • Jon Paulette from Crutchfield

    Posted on 1/28/2016 9:48:59 AM

    Liza, Swaps like that really aren't in our wheelhouse, but you might check an Accord owners' forum to see if anyone else has tried it. There are aftermarket nav receivers that will work in this Accord, though. You can use our vehicle selector to confirm which stereos fit your car and get some info on what else is needed for the installation.

  • Jayla from suffolk

    Posted on 2/16/2016 12:27:07 AM

    What radio system did you use to install on the 2003 honda accord? Could I use that radio system on a 2007 honda accord coupe? Where can I find that radio system?

  • Jon Paulette from Crutchfield

    Posted on 2/16/2016 8:40:04 AM

    Jayla, There are lots of aftermarket receiver options for this car. I've sent your question to our sales team for the best answer, and they'll be contacting you via email soon. For immediate help, you can contact them via phone or chat.

  • Madison from Wilton

    Posted on 2/18/2016 10:15:37 AM

    Hello, I have a 2005 accord ex and the stock speakers are super staticky. I am looking to replace all 6 and put in a whole new stereo with bluetooth, I took it in and they guy said he could try but I might lose my current navigation screen with my heater fan and all those settings and my screen would not light up for me to be able to change these settings. Is there a way to avoid this such as buying an extra part to be able to keep my main navigation screen?

  • Jon Paulette from Crutchfield

    Posted on 2/19/2016 9:42:20 AM

    Madison, Actually, you can replace the stock receiver and retain your climate control settings. You'll need a dash kit and wiring adapter, both of which are available at a discount when you order your receiver from 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.

  • Marshall McCants from Wash DC

    Posted on 4/18/2016 4:14:50 PM

    I have a 2003 Accord LX with built in Navigation and the Nav System is "kaput :L-(!". I purchased an after market system and the Nav/Camera and BT worked fine, but no heat/AC, what's the solution from a Subject Matter Expert? Thanks and all the best!

  • Jon Paulette from Crutchfield

    Posted on 4/19/2016 8:53:37 AM

    Marshall, That's a bummer. Sounds like something's not connected properly, but that's about the best I can do with the information at hand. If the installation was done by a car audio shop, you should definitely chat with them. If you did it yourself 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. Good luck!