Contact us
Close contact box
Connect ID #
347 130 89
Connect ID #
347 130 89

Sorry, chat is currently unavailable

Don't wait on hold. We'll call you back when it's your turn to talk with the next available .
Please enter your name  
Please enter your phone number  
Please enter a message  

Calls may be recorded for training and quality control purposes.

We are located in Virginia USA.

Thank you. We will be calling you .
We're sorry. We have encountered a problem.

2006-2010 Hummer H3

How to upgrade the stereo system in your Hummer

2006-10 Hummer H3

In brief: This Crutchfield Research Garage article gives you an overview of your H3's stock stereo system and your aftermarket upgrade options. We'll tell you all about:

Then, use our vehicle selector to find the gear that will fit your Hummer H3.

Overview of the Hummer H3

Some people love Hummers, some people hate them, but everybody notices them. The Hummer H3 is the smaller version of this well-known vehicle, and it tends to generate the same intense feelings as its larger relatives.

The Hummer brand went the way of the dodo in 2010, but there are still plenty of these brawny beasts on the road. Loosely based on a Chevy/GMC platform, the H3 is much more suitable to "real life" than its larger, pricier relatives, the H1 and H2. And your local GM dealer should have little trouble keeping your truck in good running order, which is another bonus.

The H3 isn't for everyone. Sure, it has the outward visibility of a fallout shelter, and it goes through gas like there's a hole in the tank, but the rugged H3 is a thoroughly capable truck with a lot of personality. Upgrading the stereo system will make it an even better ride.

Hummer H3T

In 2009, Hummer added the H3T pickup. The basic stereo replacement details are the same, but we'll note any differences below. (Crutchfield Research Photo)

The factory stereo system

The H3's base stereo included an AM/FM/CD receiver and 6 speakers. The optional Monsoon system also offered six speakers, but included a subwoofer and an AM/FM/6-disc navigation receiver. XM satellite radio, Bluetooth® connectivity and GM's OnStar system were included as well, and a (much-needed) rear-view camera was added in 2008.

If you replace the factory radio, you'll lose your factory XM satellite radio capability, as well as the factory navigation system. Both of those features can easily be replaced (not to mention improved) with an aftermarket receiver.

The Hummer's safety warning chime is built into the factory radio, so you'll need to purchase an integration adapter to retain that important safety feature. Crutchfield strongly recommends that you use the recommended adapter (which also retains OnStar) when you replace your factory radio. It's not free, but we'll discount it deeply when you purchase the adapter along with your receiver.

Hummer H3 radio

The H3's standard factory radio (Crutchfield Research Photo)

Replacing the factory radio

Whether your Hummer H3 is equipped with the base receiver or the optional nav unit, the swap-out process is pretty straightforward. If you're installing a double-DIN (4" tall) receiver, you'll have to unbolt or cut out the factory stereo's rear support bracket to make room for the new piece. This isn't nearly as hard as it sounds, but it is an extra step to keep in mind.

Hummer H3 nav receiver

The optional navigation receiver (Crutchfield Research Photo)

Pry around the sides and bottom of the receiver trim panel to release seven retaining clips, then disconnect the wiring harnesses and remove the trim panel. Next, remove the four screws that secure the radio to the dash. At that point, you can pull the radio out and disconnect everything.

Installing the new piece is largely a matter of doing all of the above steps in reverse. You'll need your factory integration adapter (see above) to connect the receiver to your factory system. You'll also need a custom mounting bracket to make the new stereo look like it belongs in your truck. This piece is also included at a deeply discounted price with your new stereo purchase from Crutchfield.

Detailed stereo and speaker removal instructions

MasterSheet image
With step-by-step disassembly instructions and plenty of up-close, detailed photos, our exclusive Crutchfield MasterSheet™ 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.

Here, and elsewhere throughout the truck, be careful with these plastic panels. A set of Bojo Trim Panel Tools can be a big help here, because (unlike a big flathead screwdriver, for example) they're designed specifically for this kind of work. Ergonomic handles and specialized tips make it a lot easier to remove panels without damaging your vehicle's interior. Trim panels aren't cheap, so these tools are a smart investment, especially when you consider that we discount them when you buy them with a new stereo.

Work slowly, and make sure you have a safe place to store the panels until you need them again. Once the stereo is hooked up, remember to test it before you go to the trouble of putting the dash back together.

Tools needed: panel tool, 7mm socket, ratchet, and extension

Read our Car Stereo Buying Guide for shopping tips and advice.

Shop for car stereos that fit your Hummer H3

Replacing the factory speakers

This Hummer sports speakers in the front and rear doors, plus there are tweeters up front in the A-pillars. Upgrading them will really improve your audio experience.

Hummer H3 pillar tweeter

The tweeters are located in the A-pillars (Crutchfield Research Photo)

Front tweeters

All H3's, regardless of which factory system is installed, have 1-1/2" tweeters located in the lower A-pillar trim piece. They're easy to get to and reasonably easy to replace. The tweeter is attached to the trim panel itself, so you'll need to gently pry it out of the panel. A mounting bracket is not available, but you can use our universal backstrap to secure the new tweeters.

Complete, illustrated instructions for this (and the rest of your installation) can be found in your Crutchfield MasterSheet, which is included free with your stereo purchase.

Tools needed: Phillips screwdriver, panel tool, small flat blade screwdriver

hummer h3 front door

The H3's front doors house 6-3/4" factory speakers (Crutchfield Research Photo)

Front doors

The factory front speakers in both Monsoon and base H3's, are 6-3/4" units, and you can replace them with a wide variety of aftermarket speakers. The key difference to keep in mind is that a wiring harness is not available for Monsoon-equipped trucks. You can splice or solder your new speaker's wires to the factory wiring, or use a set of Posi-Products connectors. We recommend the latter option, because it's faster, easier, and the connection is much stronger.

You'll need to remove the door panel to access these speakers, but that's a straightforward process. It's fully covered in your MasterSheet, so there's nothing to worry about there.

Hummer H3T front door

The H3T's doors are a bit different, but not difficult (Crutchfield Research Photo)

Front speakers in the H3T

The H3T truck's front doors differ from those found on its closed-in cousins. Getting to the speakers involves doing a lot of the same things, but not exactly and in a different order.

On this truck, you'll pry out the screw cover behind the door release handle and remove one Torx T-30 screw. Pry up the power switch panel to release the retaining clips holding it in place, disconnect the harnesses and remove the switch panel.

Next, you'll pry off the armrest side trim strip and remove the two exposed Torx T-30 screws. Carefully pry out the sides and bottom of the door panel to release ten retaining clips, then disconnect the cables and put the door panel aside in a safe place.

Remove the four screws securing the speaker to the factory bracket, then disconnect the harness and remove the speaker.

To install the new speaker, simply reverse those steps. If you need a mounting bracket for your new speakers, it will be included with your Crutchfield speaker purchase.

Tools needed: Phillips screwdriver, panel tool, small flat blade screwdriver, Torx T-30 driver

hummer h3 rear door

The H3's rear door (Crutchfield Research Photo)

Rear door speakers

The H3, especially in its top trim level, is a surprisingly comfortable vehicle. It's not a Rolls-Royce, but it's a very nice place to be, especially when you consider this truck's utilitarian roots.

The gut-level simplicity of the Hummer shows itself in several subtle ways, though. Replacing the rear door speakers will give you a look at one of them. Essentially, you'll be doing the same work here that you did on the front doors, right down to the Monsoon-base model differences.

Tools needed: Phillips screwdriver, small flat blade screwdriver, Torx T-30 driver

Read our Car Speakers Buying Guide for more information.

Shop for speakers that fit your Hummer H3

Hummer H3 factory sub

The factory sub is an 8" model. Getting to it involves some effort, but it's not as hard as it looks (Crutchfield Research Photo)

Bass in your Hummer H3

Monsoon-equipped H3's have an 8" subwoofer in the cargo area, behind a panel on the driver's side. Getting to the sub doesn't involve anything especially tricky, but it does involve a lot of steps and a lot of panel removal.

This is well within the ability of the average DIY-er, but it's important to work patiently and stay organized when you're removing this many screws and panels. All the instructions you need can be found in your MasterSheet, and if you get stuck, our tech support team is only a phone call away.

The most challenging part, really, is that, depending on which sub you choose, you may need to drill new screw holes to mount an aftermarket sub in this location. Plan on having a pencil (to mark the new holes) and a drill handy if you need them. The drilling itself isn't that tough, but be aware of where you're drilling and what's around the area at all times. And, of course, wear eye protection.

Tools needed: Panel tool, Torx T-50 socket, ratchet and extension, Phillips screwdriver, small flat blade screwdriver, power drill

Aftermarket bass

If you want even more bass, there are several ways to go with the H3. The cargo area, while not as vast as you might expect in a truck this size, still offers a 42"W x 19"H x 23"/30" H space for a woofer box. That's plenty of room for a seriously booming bass set-up, so if you want to install aftermarket amps and stuff an enclosure with the biggest component subs you can find, have at it.

Learn more about adding amps to your system in our Car Amplifier Buying Guide.

JL Audio Stealthbox

JL Audio's custom-fit bass solution for your Hummer H3

If your H3 still gets used like a truck every now and again, you might want to look into more practical options. The JL Audio Stealthbox is a custom enclosure that fits behind the rear storage panel on the driver side and replaces the factory Monsoon sub. It includes one 10" 4-ohm subwoofer from JL Audio. If your H3 doesn't have a factory sub, you'll need to buy a new driver's side rear trim panel to install a Stealthbox. Either way, this is not an easy installation. Unless you're an experienced hand at this sort of thing, we recommend turning the job over to professionals.

If that sounds like a bit much, a powered subwoofer can fit simply and neatly into the cargo area and still leave plenty of room for camping gear, luggage, and whatnot. You won't get the planet-rattling thump of a component set-up, but you'll still get plenty of the bass you need to enhance all kinds of music.

Bass in the H3T

With the H3T pickup, the rear cargo area isn't an option and there's almost no room under the rear seats. Your best bet here is to opt for a smaller, powered subwoofer.

Learn more about building a bass system in our Car Subwoofer Buying Guide.

Shop for vehicle-specific subwoofers for your Hummer H3

Other options for your H3

There are plenty of other ways to improve your Hummer. Here are just a few ideas:

Alpine HCE-C1100 rear view camera

Alpine HCE-C1100 rear view camera

Rear-view cameras

The H3 is kind of interesting to look at, but it's really tough to look out of. With small windows and blind spots large enough to hide a minivan, driving the H3 in traffic can be an adventure and maneuvering in a crowded parking lot can be a huge challenge. A factory rearview camera was added to the option sheet in 2008, but if your H3 doesn't have one, we offer rear-view cameras from Alpine, Kenwood, 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.

Interior protection

When you head to the great outdoors in your H3, some of the outdoors will find its way into your truck. Floor mats and cargo mats from WeatherTech will help protect your floors from dirt and damage. As for the seats, door panels, headliner and other interior surfaces, we recommend WeatherTech’s TechCare car care products.

Sound deadening

With a big, broad front end, a stand-up windshield, and enormous tires, the H3 doesn’t slip through the air as much as it bludgeons the air senseless and shoves it out of the way. All that bludgeoning can get noisy, which will diminish the impact of your new stereo system. To combat wind noise and road roar, you can install Dynamat in the doors and (if you install a big sub) rear hatch area. This sound-deadening material will keep the noise out and allow you to really enjoy your music.


Installing a security system in your Hummer 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.

Let's get started!

Ready to shop? Use our vehicle selector to find the gear that will fit your car or truck. If you have questions, give us a shout via phone, chat, or email

  • Sean from Lafayette, Indiana

    Posted on 11/3/2023

    Hi, I've installed an Alpine halo 11 ILX-F411, replaced the door speakers with JL c2s, added a JL cp12 wvo3 ported bass wedge, a JL JD1000/1 mono and a Jl jd400/4 four channel amp, in my 2008 H3 with the monsoon system. What I'd like to do is splice into the door speakers, at, the monsoon amp, but leave the monsoon amp along with the 8 " DVC sub in place if possible. Run the door speakers off the JD 400/4, the 12" subs off the JD1000/1 mono, and the monsoon amp powering nothing but the 8" sub. Is this possible? If so, how do I determine which wires are the doors before entering the monsoon amp, so i can splice the 4channel in at that point?Figuratively, the 8" sub would fill in nicely what the 12s miss

    Commenter image

    Jon Paul from Crutchfield

    on 11/3/2023

    Sean, 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 improving your system.
  • Peter Nisita

    Posted on 3/24/2023

    I installed the Axxess ax-gmcl2 in my 07 Hummer H3 and opened android auto and it says its not receiving a VSS signal. I connected blue/pink from the Axxess module to the pink on my Pioneer AVH-W4400NEX. I looked it up online and found a lot of conflicting information so I don't know exactly where to start.

    Commenter image

    Jon Paul from Crutchfield

    on 3/27/2023

    Peter, 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.
  • Ben Johnson from Clarkston

    Posted on 11/4/2022

    I used the recommended wire harness to hook up a aftermarket sony touch screen and i am using the factory monsoon system. Now my door chime is extremely loud. How do i turn the chime off or down.

    Commenter image

    Jon Paul from Crutchfield

    on 2/10/2023

    Ben, 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.
  • David Drury from ROUND MOUNTAIN, NV

    Posted on 11/28/2020

    I have a 2008 hummer base with a cyclone system. I want to put in an alpine head unit with the powerpack alpine amp behind it. It doesnt have onstar, steering wheel controls or satellite radio, I do have the XM radio kit in my cart as well, along with the backup camea, also alpine. My question is it says the Alpine powerpack wont work with a factory amp already installed. Does the cyclone amp only drive the subwooer? Can i use this install without any problems? the harness and necessary accessories are in my cart, just dont want to press pay if theres going to be problems with that cyclone amp back there. Thank you for any help.

    Commenter image

    Jon Paul from Crutchfield

    on 12/14/2020

    David, 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.
  • Max

    Posted on 3/30/2020

    I have a 07 h3 and would like to install a new 2000w amp along with 2 12" subwoofers in the cargo area, but u would like to keep the monsoon subwoofer along with the amp powering all of the speakers in the car. How would I do this?

    Commenter image

    Jon Paul from Crutchfield

    on 3/30/2020

    Max, 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.
  • Matt Thompson from Norwich, NY

    Posted on 12/7/2019

    Just bought an '09 base model H3 and I mean BASE, zero options. I remember the old 1.5-DIN radios and stuff like the Pioneer PH-77DHS, et al., which saved me from hacking out that old plastic rear support. I'm looking at an Alpine W650 radio now because it is super shallow. Will that allow me to retain the rear support, or will I have wire clearance issues especially when I use the camera inputs?

    Commenter image

    Jon Paul from Crutchfield

    on 12/9/2019

    Matt, Looks like you will need to remove the support for the Alpine, but there are plenty of other models available if you don't want to do that. When you enter your vehicle's info into our Outfit My Car tool, you'll see all the stereos that fit, plus the correct harness. If you have any questions, our advisors are available via phone or chat.
  • Eileen Yourell from Vershire

    Posted on 10/23/2019

    I need to connect to Spotify. I don't have a AUX input !! How do I listen to Bluetooth via my iPhone / Spotify

    Commenter image

    Jon Paul from Crutchfield

    on 10/25/2019

    Eileen, Seems like you'll probably want to install a new rceiver. 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.
  • Commenter image

    Jon Paul from Crutchfield

    Posted on 7/17/2019

    Aaron, That's a good choice. You have some other options, too, but it might be helpful to have a conversation with a real live human to assess your needs and suggest some different stereos. Give us a call and talk to one of our advisors. We can help you choose the right receiver and give you the right advice on how to install it.

  • Aaron from LUBBOCK

    Posted on 7/17/2019

    I'm thinking about the Pioneer 3500 Nex for a new receiver, but I'm worried that the pop out thingy will break easily. What would be other good options?

  • Vincent from Aubrey, Tx

    Posted on 2/4/2019

    Where is the amp located in a 2009 H3 base model ?

    Commenter image

    Jon Paul from Crutchfield

    on 2/5/2019

    Vincent, The base H3 makes do without a stock amp. The Monsoon system does include an amp, which is mounted on the subwoofer enclosure.

Find what Fits your vehicle


Checking fit...

Compare the sound