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2018-up Honda Accord

Upgrading the stereo system in your Accord
2018 • 2019 • 2020 • 2021

2018 honda accord

In brief: This Crutchfield Research Garage article gives you an overview of your Accord's stock stereo system and your aftermarket upgrade options. Use our vehicle selector to find the gear that will fit your car. 

Overview of the Honda Accord

There are those who say the sedan is dead. Those people do not work at Honda, thankfully. Sure, SUVs and trucks are the big (literally) thing right now, but Honda still believes that there’s a place in this world for a smart, stylish, practical 4-door with a trunk. So much so, in fact, that the Accord 2-door is no more, which is kind of a shame, but we digress….

Honestly, the 2018-up Accord is so sleek that you might not miss the coupe. It’s actually possible to look cool driving this sedan, which is something that can’t be said for every 2-box people mover out there. It’s the kind of car that you won’t get tired of looking at, and because it's a Honda, you'll probaby be looking at it for quite a while.

Replacing the radio is pretty much impossible (sorry), but the stock receivers aren’t bad and you have plenty of options if you want to boost your car’s sound with aftermarket speakers. This Accord is one of the best sedans out there right now, so why not give it the best possible sound?

honda accord radio

You can't replace this radio, but there are other ways to improve your Accord's sound (Crutchfield Research Photo)

Your Honda Accord's factory stereo system

The new Accord’s factory systems come in three flavors, a 4-speaker base system, an 8-speaker system and a 10-speaker premium system. All center on an 8" AM/FM/SiriusXM/Bluetooth touchscreen receiver, and features like Apple Carplay, Android Auto, and wireless phone charging capability can be had with the right package.

There’s also a built-in rear-view camera system, which is handy given the fastback design’s somewhat limited sightlines. All in all, the stock stereos are pretty decent and Honda’s revised infotainment interface is getting positive reviews so far.

Hybrid note

If you have an Accord hybrid, the gas-electric hybrid powertrain and its very sensitive electronics will make upgrading the audio system a little more complicated. Here are a couple of things to keep in mind:

  • Be sure to only use a multi-meter when testing wires, and NEVER use a test light to test wires in this vehicle. Doing so could cause some serious (by which we mean dangerous and expensive) damage.
  • A hybrid is not the car to choose if you want to build a massively powerful audio system. The thirsty current draw of a high-powered stereo is not a good thing for the hybrid system, so don't exceed a 30-amp current draw or 350-watt RMS power rating.

This is good news, because there’s really no way to replace the receiver in this car. That may change, but at this point, everything’s in the screen, and there’s no room in the dash for a standard single-DIN or double-DIN receiver. That said, it’s a very functional unit and all but the most dedicated CD enthusiasts will be very happy with it.

Yep, that’s right – there’s no CD player in this Accord. Some of you may now take a moment to feel somewhat old. We’ll meet you back here as soon as we’re done doing the same thing. Sigh….

honda accord dash

You can't replace the radio in this Accord, but you can upgrade the center dash speaker behind it (Crutchfield Research Photo)

Replacing your Accord's factory radio

Or not, actually. So what can you do if you want to improve your Accord’s audio performance? Speakers, amplifiers, subwoofers, and sound processors, to be generally precise. Just enter your vehicle info to see what's available for your car. We’ll give you an overview of how to replace the speakers here, but the ins and outs of adding amps and subs and processors are best discussed with a Crutchfield Advisor.

The reasons we’re soft-pedaling this are many, but one reason is that the Accord is equipped with an active noise cancellation system (ANC). When you add an aftermarket amplifier, processor, or subwoofer to your system, you'll need to disable the system's microphones. It’s things like this that make us want to have a conversation with you while you’re planning your system.

Before you do anything to upgrade your Accord’s audio system, set the parking brake and disconnect the negative battery cable prevent any electrical short. Safety first, y’know.

Replacing the factory speakers in your Honda Accord

honda accord center dash speaker

The speaker is attached to the center dash grille (Crutchfield Research Photo)

Center dash speaker (10-speaker system only)

The Premium System’s center dash speaker is a 3-1/2" model located under a grille, behind the touchscreen. Getting to it involves a little less than half of the work necessary to remove the receiver, which is a good thing, because there are an awful lot of steps in that largely pointless process.

Replacing the speaker is a good thing to do, though. Once you’ve set the brake and disconnected the negative battery cable, you’ll be ready to get to work.

Detailed stereo and speaker removal instructions

ResearchNotes image
With step-by-step disassembly instructions and plenty of up-close, detailed photos, our exclusive Crutchfield ResearchNotes™ takes the guesswork out of removing the factory stereo and speakers. It's free with your Crutchfield order, or you can purchase one separately for just $9.99.

Use a panel tool to pry out the ignition switch panel to release the retaining clips, then disconnect the harness and remove the switch panel. Open the glove box door and pry out the upper glove box trim panel to release ten retaining clips and remove that panel. With that done, pry off the passenger's side dash endcap panel to release six retaining clips and remove then panel. Next, pull the passenger's side vent assembly toward the rear of the car to release four retaining clips and remove the assembly.

Starting at the driver's side edge, pry out the climate control panel to release nineteen (!) retaining clips, disconnect the harnesses and hose, then remove the panel. Remove the two Phillips screws thus exposed, then pry up the dash display to release its retaining clips, disconnect the harness, and remove the display.

With that, you can remove the two Phillips screws securing the speaker to the grille and remove the speaker. There are plenty of 3-1/2" aftermarket speakers that will fit here, and we’ll include the wiring harness adapter you need to connect the new piece to the factory wiring.

Tools needed: Panel tool, Phillips screwdriver

honda accord front door speaker

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

Front door speakers

The front door speakers (which are woofers in some cases) are 6-3/4" models and they’re refreshingly easy to remove and replace. A decent number of replacement options are available, and when you order your speakers from Crutchfield, we’ll include the mounting brackets you need to install your new 6-3/4" aftermarket speakers.

Starting at the rear edge, pry up the power switch panel to release seven retaining clips, then disconnect the harnesses and remove the switch panel. Once that’s done, remove the Phillips screw exposed by the removal of the panel.

Pry out all sides of the door panel to release twelve retaining clips, then disconnect the harness and remove the door panel. Use care when you’re prying on this panel or any other in this car, since Honda has a well-earned reputation for putting its cars together rather snugly.

With the panel removed and set aside, all that’s left is removing the one Phillips screw securing the stock speaker to the door steel. Pry out the top of the speaker, then disconnect the harness and remove the speaker.

Tools Required: Panel tool, small flat-blade screwdriver, Phillips screwdriver, utility knife

honda accord tweeter

The front tweeters are attached to the sail panels (Crutchfield Research Photo)

Front door tweeters (8- and 10-speaker systems only)

If your Accord is has front door tweeters, you’re already well on your way to removing the tweeters by the time you remove the door panels to get to the woofers. Once you’ve done that, pry off the sail panel to release two clips, then disconnect the harness and remove the sail panel. Pry the tweeter out of the sail panel grille to release three clips, then remove the tweeter.

The factory tweeter is just a bit over 1-1/2" in diameter (1.570", to be precise), so a wide variety of component system tweeters can work here. To secure the new tweeter, you’ll need to use our universal backstraps (or hot glue or silicone). A wiring harness adapter is not available for this location, so we recommend using Posi-Products speaker connectors to connect the new tweeter to the factory wiring.

Tools Required: Panel tool, small flat-blade screwdriver, Phillips screwdriver

honda accord rear deck

No matter how many rear desk speakers your Accord has, you'll have to do some work to replace them (Crutchfield Research Photo)

Rear deck speakers

Depending on how your Accord is equipped, the rear deck can house a pair of full-range speakers, a set of component speakers (8- and 10-speaker systems) and an 8" subwoofer (10-speaker system only).

However many speakers are in there, the process of getting to them is the same and it’s a lengthy one. You’ll have to remove the seat bottom cushion, some panels, and some window gaskets. None of the individual tasks are all that difficult, but there are a lot of them. You’ll need time, patience, and probably a helper to do the job yourself, but it can be done. All the details are explained in the Crutchfield ResearchNotes included free with your speaker purchase.

honda accord rear deck speaker

Once you get to the rear deck speakers, they're pretty easy to deal with (Crutchfield Research Photo)

The standard full-range speakers are 6-3/4" models that can be replaced by a variety of same-side models. The component set includes 6-3/4" woofers and there are plenty of component sets with tweeters that can replace the 1.570" stock models with the help of universal backstraps and Posi-Product connectors.

As for the Premium System subwoofer, it’s approximately 8" in diameter and has a proprietary bolt pattern. You’ll need to fabricate a bracket to install an aftermarket subwoofer. The stock piece is a 2-ohm sub, so pay close attention to impedance when you’re shopping for a new sub. Give us a call if you have any questions about replacing this subwoofer.

Tools needed (all): Panel tool, small flat blade screwdriver, 10mm socket, ratchet and extension, 10mm open-ended wrench, Phillips screwdriver, utility knife

Shop for speakers that fit your Honda Accord EX

honda accord rear deck subwoofer

The 8" premium subwoofer isn't bad, but aftermarket subs will give you more thump (Crutchfield Research Photo)

Bass in your Accord

The new Accord’s sleek appearance hides a trunk that’s actually even larger than the outgoing model. This is good news for anyone who likes really big bass. We measured the trunk from the front section of the trunk to the rear edge of the wheel wells and came up with a 35" W x 19" H x 13"/20" D space for a subwoofer box. So you have something to work with if you want maximum thump in your Accord.

If you like bass just fine, but also like using the trunk for groceries and luggage, a more compact powered subwoofer might be a smart choice. That's definitely the way to go with the hybrid version of the Accord.

honda accord trunk

There's plenty of room back here for subs and amps (Crutchfield Research Photo)

Other options for your Accord sedan

There are plenty of other ways to improve your Accord sedan. Here are just a few of the ways Crutchfield can help.

Add an amp (or two)  

A new 4-channel amplifier will help you get the most out of your new speakers. You'll get cleaner power (and a lot more of it), which will result in much, much better sound. A mono amp can provide the juice you need for a new subwoofer, too.

Protect your Accord's floors

Factory floor mats are designed to fill a space as cheaply as possible, so they look lousy and wear out quickly. Replacing the worn-out old mats with quality WeatherTech floor liners will help protect your Accord's carpeting from dirt, damage, and whatever else life throws at it. Plus, they look kinda sporty, which is a nice touch in a car like this.

Sound deadening

One good way to get the most out of your Accord's sound system is to keep more of the sound in your Accord. The Dynamat Xtreme Door Kit is the perfect way to seal out road noise and seal in the sound. This heavy-duty insulating material is easy to install, and it really makes a difference. This is a great thing to do while you're installing new speakers. Why take the doors apart twice if you don't have to? One kit will take care of the front doors on your car. If you're adding a trunk subwoofer, purchase some extra Dynamat and line the trunk lid.

Security systems and remote start

Installing a security system in your Accord won't be easy (security systems rarely are), but it's definitely a good idea for any popular Honda. Our Crutchfield Advisors can help figure out what you need to get the job done, but we usually recommend taking your car to a professional installer.

Adding remote start capability to your Accord lets you warm it up in the winter or cool it down in the summer. Installation is usually easier with these systems, but we still ask that you call to order so that we can make sure you get the right harness for your ride.

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.

  • Ruben Aponte from Perth Amboy

    Posted on 9/12/2021

    I replace the door speakers for beyma speakers and the 4 tweeters for Rockford t series and add a clarion 755 preamp and a 1200 watts taramps amp and sound really nice but now I don't have voice in the maps when I use CarPlay what could it be

    Commenter image

    Jon Paul from Crutchfield

    on 9/13/2021

    Ruben, With questions like that, it's always better to have a conversation with a real live human. If you bought your gear from Crutchfield, you can call Tech Support for free help troubleshooting your system.
  • EJ from Sacramento

    Posted on 6/3/2021

    I am adding a compact sub in my dash and would like to know if I need to run separate power to the amp (requires 15A) or if I can tap into the existing power going to the head unit. Thank you!

    Commenter image

    Jon Paul from Crutchfield

    on 6/4/2021

    EJ, With questions like that, it's always better to have a conversation with a real live human. Give us a call and talk to one of our advisors. We can help you choose the right gear and give you the right advice on how to install it.
  • Devin from Bradenton

    Posted on 4/26/2021

    I have the 1.5 Sport w/8 speaker system. If I wanted to add the center dash speaker and the subwoofer, is the wiring set-up in the system to do that?

    Commenter image

    Jon Paul from Crutchfield

    on 4/27/2021

    Devin, OEM upgrades like that are rarely as simple as they seem. Give us a call and talk to one of our advisors. We can help you choose the right gear and give you the right advice on how to install it.
  • Tim from Louisiana

    Posted on 4/21/2021

    Does the anc need to be disconnected if a new sub is put in the rear deck in factory location and ran off the factory amp?

    Commenter image

    Jon Paul from Crutchfield

    on 4/22/2021

    Tim, That's right. With questions like that, it's always better to have a conversation with a real live human. Give us a call and talk to one of our advisors. We can help you choose the right gear and give you the right advice on how to install it.
  • Charlie from Honolulu

    Posted on 3/29/2021

    I have a 2020 Accord Hybrid base model and upgraded the speakers now I want to add a 4 channel amp. Is there a wiring harness available like a T harness or will I have to cut factory wires?

    Commenter image

    Jon Paul from Crutchfield

    on 3/30/2021

    Charlie, Probably, but when it comes to amps and hybrid vehicles, there's often more to discuss. Give us a call and talk to one of our advisors. We can help you choose the right gear and give you the right advice on how to install it.
  • Bryan from Menlo Park

    Posted on 2/24/2021

    I have a 2018 Honda Accord sport. I had an amp powered subwoofer and 4 jl c1 speakers installed. But my audio quality is terrible with a lot of clipping and I was told it's because the factory stereo doesn't have rca inputs? So there's an adapter compressing the Audio? If I can't get the stereo swapped what can I do?

    Commenter image

    Jon Paul from Crutchfield

    on 2/24/2021

    Bryan, It's hard to say from here, but we would definitely recommend disconnecting the ANC module if you haven't already. There are some videos out there that can show you how to do this. Another possibility is that the stock radio just can't do all this stuff. Of course, none of this might be the exact answer you need, so give us a call and talk to one of our advisors about what's going on. We can probably help you find the gear you need to get the sound you want.
  • Ken from Boise

    Posted on 1/7/2021

    When adding an aftermarket amp to power a subwoofer can you connect to the head unit or do you have to tap into the speakers 2020sport no woofer

    Commenter image

    Jon Paul from Crutchfield

    on 1/8/2021

    Ken, With questions like that, it's always better to have a conversation with a real live human. Give us a call and talk to one of our advisors. We can help you choose the right gear and give you the right advice on how to install it.
  • edgar Torres from Lake Worth

    Posted on 12/6/2020

    I have a 2018 1.5 Honda Accord and I was wondering where do you get the signal for the amp for a subwoofer?

    Commenter image

    Jon Paul from Crutchfield

    on 12/7/2020

    Edgar, With questions like that, it's always better to have a conversation with a real live human. Give us a call and talk to one of our advisors. We can help you choose the right gear and give you the right advice on how to install it.
  • Jay Riley from Downingtown

    Posted on 10/16/2020

    Hello I'm Jay from Pennsylvania, I just added four speakers to my 2020 Honda Accord sport 1.5. My drivers side door speaker slightly rattles and vibrates with certain bass levels. Is this an issue with Hondas?

    Commenter image

    Jon Paul from Crutchfield

    on 10/19/2020

    Jay, It can be a problem with lots of cars, actually. Give us a call and talk to one of our advisors. We can help you find some solutions that'll help.
  • Corey cox

    Posted on 4/21/2020

    I wanna switch all speakers and tweeters in my 2018 Honda Accord sport and don't know where to start... trying to find the most simplest way or list of how many things to get.. if anyone get send me a link or make blueprint list for me that would be great and I would appreciate it highly thank you

    Commenter image

    Jon Paul from Crutchfield

    on 4/22/2020

    Corey, When you enter your vehicle's info into our Outfit My Car tool, you'll see all the speakers that fit your car. If you have any questions, our advisors are available via phone or chat.