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2005-2010 Pontiac G6

2005 • 2006 • 2007 • 2008 • 2009 • 2010

Pontiac G6 convertible

Pontiac G6 convertible (Crutchfield Research Photo)

In a nutshell: This article is an overview of your Pontiac's audio system and its upgrade options. Use our vehicle selector to find the gear that will fit your G6. 

Overview of the Pontiac G6

Pontiac is gone, but its memory lives on in the Firebirds burning rubber at stoplights, the GTOs selling for crazy money during televised car auctions, and, yes, in the G6s that you see tooling around town every day. The G6 isn't a "classic" Pontiac (yet, anyway), but as a parting shot, the grand old brand (est. 1926) could have done a lot worse.

Based on the same platform that underpins the Chevy Malibu Maxx, among other GM products, the G6 is a long, sleek car that, in an interesting flashback to an earlier era of automotive marketing, is available in a variety of body styles and trim levels. From a 4-cylinder base sedan to the performance-oriented GTP coupes and convertibles, the G6 range offers something for nearly everyone. And, thanks to unwarranted worries about "orphan brand syndrome," prices can be quite reasonable.

Pay no attention to the "orphan car" nonsense. It's a Pontiac, not a Peugeot, so parts and/or knowledgeable mechanics should be available until 2073 or so. If you're thinking about installing a new stereo, Crutchfield has the gear  you'll need to keep your G6 rocking for years to come.

Pontiac G6 sedan

Pontiac G6 sedan (Crutchfield Research Photo)

Pontiac G6 coupe

Pontiac G6 coupe (Crutchfield Research Photo)

Factory stereo system

The standard G6 system consisted of an in-dash AM/FM/CD single-disc player with six speakers. XM satellite radio and an MP3 player were added to the package later on. The premium system used the same radio with an 8-speaker Monsoon system. On some 2005-2008 G6 models, the Driver Information Center was built into the radio, so you'll need the right adapter to retain that function and others.

Pontiac G6 dashboard

Getting to the G6's radio takes a bit of work (Crutchfield Research Photo)

Replacing your factory radio

Thanks to the G6's marvelously well-integrated dashboard design, getting to the factory receiver is a rather indirect procedure. The job isn't terribly difficult, but you will wind up removing a fair number of plastic panels around the radio before you get to the radio itself. Be patient, take good care of the plastic bits, and be sure to store them safely until you're ready to put them back in the car.

Pontiac G6 radio

Here's a close-up view of the Driver Info Center (Crutchfield Research Photo)

Once you reach the G6's radio cavity, there's plenty of space in the cavity for either a single- or double-DIN receiver. A wide variety of receivers will fit, but there are some things to consider while you're deciding which one to buy.

You'll lose your factory XM satellite radio (if equipped) when you replace the factory radio, but that's easy to remedy with the right aftermarket equipment. If you choose a double-DIN receiver for your 2005-2008 (and some 2009) G6, you'll lose the car's "Driver Information Center" (above), which is housed in the factory radio.

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.

In the case of some 2009 and all 2010 G6 models, the DIC moved to the dash cluster. When you use our vehicle selector, you'll see the radios that fit your car and everything you need to install one.

For all G6 models, the warning chimes and audible turn signals are built into the factory radio unit. Whether you have the standard system or the Monsoon system, you'll need to purchase an adapter to retain the warning chimes. The adapter will keep the audible safety warnings functioning properly, while also providing a switched 12-volt power source for your new radio. Depending on the adapter, it might even integrate the steering wheel audio controls.

The specific adapters available depend on how your G6 is equipped. Crutchfield strongly recommends that you use one of these adapters, and to help out, we'll give you a very nice discount on the adapter's price when you buy it along with your new stereo.

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

Steering wheel audio controls

It's relatively easy to retain the steering wheel audio controls when you install a new stereo in your G6. 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 Pontiac G6

Replacing your factory speakers

Installing a new set of speakers in the G6 isn't without challenges, but it's nothing a reasonably adept DIY-er can't handle. The results, of course, will be totally worth the effort.

Pontiac G6 front door

The G6 convertible's front door (Crutchfield Research Photo)

Front speakers

Whether your G6 has two doors or four, the procedures and possibilities for installing front door speakers are quite similar. You'll need to remove the door panels, which, despite a couple of interesting nuances covered in your Crutchfield MasterSheet™, is relatively uncomplicated. Once you're in, you'll find either a 6-1/2" or 6-3/4" woofer at the base of the door and a set of tweeters up high. A set of aftermarket component speakers would be ideal for any G6 model.

To remove the lower speakers, start by removing the four Phillips or Torx T15 screws (we've seen both) securing the factory speaker. Pull the speaker out, disconnect it, and remove it. At this time, there isn't a speaker wiring harness available for this location, so you'll have to cut off the factory connectors and splice the vehicle's speaker wires to your new speaker wires. An easier option is to use a set of Posi-Tap connectors to tap into the speaker wires without cutting off the connectors.

On the G6 sedan, the tweeters are mounted in the sail panels. On the coupe and convertible, they're mounted on the inside of the door panels (as shown above). Either way, the 1-3/8" diameter factory models are easy to reach and easy to remove. A pair of universal backstraps will make it easier to secure the new tweeters.

Tools needed: Panel tool, Phillips screwdriver, flat-blade screwdriver, Torx T15 and T30 drivers

Note: Some convertible models include a mid-range speaker. We have not researched this location at this time, but we welcome your input and, if possible, photos.

Pontiac G6 rear deck speakers

Pontiac G6 sedan rear deck speakers (Crutchfield Research Photo)

Rear speakers

The degree of difficulty involved in replacing the rear speakers on the G6 depends entirely on the type of G6 you're working with. The convertible is relatively easy, but the sedan and coupe involve varying (but similar) amounts of rear seat and trim removal. It's not hard, but it is labor-intensive, so make sure you've cleared out plenty of time for the job. Your Crutchfield MasterSheet contains illustrated instructions for all three models.  

On Monsoon-equipped sedans and coupes, the amp sends bass and treble frequencies to the speakers through separate sets of wires. To get full-range sound, you'll need to install an aftermarket stereo and bypass the factory amp, which is located in the right rear of the trunk.

Pontiac G6 coupe rear deck

If your G6 has a roof, the rear speakers are in the rear deck. This is the coupe. (Crutchfield Research Photo)

Coupe: On the G6 coupe, the rear deck speaker replacement process is bit more involved, but not unbearably so. Your MasterSheet explains the ins and outs of getting your old speakers out and your new ones in. A variety of 5-1/4", 6-1/2", or 6"x9" speakers will fit in the rear deck of Monsoon-equipped coupes, but you'll need to splice the wires or use connectors when you install the aftermarket models.

We have not yet researched a coupe equipped with the standard system. Based on the sedan, however, we're confident that a variety of 5-1/4", 6-1/2" or 6"x9" speakers will fit.

Sedan: The sedan, regardless of system, was equipped with 6"x9" rear deck speakers, which can be replaced by same-size aftermarket models or, with the help of the discounted brackets available with your Crutchfield speaker purchase, 5-1/4" or 6-12" models. A wiring harness is available for vehicles equipped with the standard stereo, but you'll need to splice the wiring or use a set of Posi-Products connectors to hook everything up in a Monsoon-equipped car.

Pontiac G6 convertible speakers

On the G6 convertible, the speakers are in the rear side panels (Crutchfield Research Photo)

Convertible: Your G6 convertible (technically, a retractable hardtop) has a pair of rear speakers located behind grilles in the rear seat side panels. They're pretty easy to get to, and they can be replaced with a number of 6-3/4", 5-1/4", or 6-1/2" speakers. G6 convertibles have the Monsoon system, but unlike the sedan and coupe, these speakers are not bi-amped, so you won't have to replace the radio or bypass the factory amplifier.

To remove them, start on the sides and pry out the edges of the speaker grille panel to release the retaining clips. Flex the panel in the middle to clear the clips on the top and bottom as you remove it.

Remove the four Phillips screws securing the speaker, pull it out and disconnect the wiring plug. Again, you'll need to splice the wiring or use a set of connectors.

A speaker adapter bracket is available at a discount with your order. Depending on the speaker you're installing, you may need to modify this bracket by grinding off some material with a rotary tool.

Tools needed (depending on body style): Panel tool, Phillips screwdriver, flat-blade screwdriver, ratchet and extension, and 1/4", 7mm, 13mm, and/or 18mm sockets

Shop for speakers that fit your Pontiac G6

Pontiac G6 sedan trunk

The G6 sedan has plenty of trunk space for your subwoofers; the convertible (shown) does not (Crutchfield Research Photo)

Bass in your Pontiac G6

The G6 sedans and coupes offer a healthy amount of trunk space. The sedan's trunk offers 40" W x 13" H x 34"/38" D of space for a subwoofer box, while the coupe gives you a similar amount of space. That's plenty of room for an amplifier and a subwoofer box.

The convertible is a different story. That retractable hardtop has to go somewhere, and that somewhere is the trunk. Measured below the top's safety cover, there's a mere 39" W x 5" H x 11"/11" D of room back there. Thankfully, there are some compact powered subs to choose from, so you'll be able to add powerful bass to your G6 convertible.

Shop for vehicle-specific subwoofers for your Pontiac G6

Other options for your G6

Here are some other suggestions on ways to improve your Pontiac G6:

iPod® and satellite radio adapters

If you don't want to replace the factory receiver, you can still add versatility and great sound to the system. We offer several adapters that will allow you to use an iPod, MP3 player, or satellite radio with the factory radio.


With its long wheelbase and slippery body, the G6 is reasonably quiet as it is. But if you really want to get the best performance out of your stereo, you should consider a Dynamat 10435 Xtreme Door Kit. This heavy-duty insulating material is easy to install, and it really makes a difference. One kit should take care of a 2-door G6 or the front doors on a sedan. If you install an aftermarket subwoofer, you might want to line the trunk lid as well.

Remote start and security systems

Adding remote start capability to your vehicle lets you warm it up in the winter or cool it down in the summer. The iDatastart system is incredibly convenient and makes it easier than ever to install a remote start system, so we highly recommend it. The module requires a vehicle-specific T-harness (sold separately) to connect with your vehicle's computer, security, and ignition systems, so we ask that you call to order so that we can make sure you get the right harness for your ride.

You can also talk to your Crutchfield Advisor about a security system. They’re not as easy to install (we usually suggest letting a professional do the job), but we can help you choose a system that’ll work in your vehicle.

Shop for car security systems for your Pontiac G6

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.

  • Lisa from Spring Creek

    Posted on 11/6/2018

    2005 Pontiac G6 with aftermarket Pioneer stereo. I can't set the clock. All I have is Info, Menu and Enter button. How do I set the clock?

    Jon P. from Crutchfield on 11/7/2018
    lisa, If you used the Metra dash kit to install the new receiver, the instructions contain all the info you need on this. Basically, once you get to the "set time" screen, the INFO button changes the hour and ENTER changes the minute. If your bought your gear at Crutchfield, you can call Tech Support if you have more questions. 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.
  • Jon Paulette from Crutchfield

    Posted on 5/14/2018

    Andrew, 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.

  • Andrew from Livonia

    Posted on 5/11/2018

    what gauge wire is from the factory that runs to all four speakers in a non monsoon sound system. 2008 g6 i was looking to install a alpine ktp445u and was making sure the wire can hold up to the extra power

  • Jon Paulette from Crutchfield

    Posted on 6/22/2017

    Keith, Not at this time, unfortunately. When you enter your vehicle's info into our Outfit My Car tool, you'll see which stereos will fit your G6, plus the correct harness. If you have any questions, our advisors are available via phone or chat.

  • Keith Norman from Hickory Grove

    Posted on 6/20/2017

    I have an 05' G6 GT and I've been looking into upgrading stereo. I'm curious is there any double din stereo that retains driver info center?

  • Jon Paulette from Crutchfield

    Posted on 6/19/2017

    Jacob, 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.

  • Jacob from Norman

    Posted on 6/19/2017

    I have an 07 G6 GT Convertible. I'm wanting to upgrade my audio a great deal. I really wanted a double din but i also want to retain the DIC. I'm under the impression that this isn't possible, am i correct? If this is the case I guess ill have to be fine with a single DIN. I want to add some good bass and replace the factory speakers with a component system. Also i was wondering what the output of the factory Monsoon AMP is and if there's any way of wiring in an aftermarket sub to it?

  • Jon Paulette from Crutchfield

    Posted on 5/8/2017

    Damon, If you're looking at three speakers, they are (from top to bottom) a tweeter, a midrange, and a woofer. When you enter your vehicle's info into our Outfit My Car tool, you'll see which speakers fit your car. If you have any questions (and you probably will on the midrange speakers), our advisors are available via phone or chat.

  • Damon Freers from Independence

    Posted on 5/6/2017

    on the g6 gt coup there are thee speaker grills in each door what speakers fit these 3 spots

  • Jon Paulette from Crutchfield

    Posted on 5/1/2017

    Chuck, That's one possibility, for sure. Or you just have a loose connection somewhere, or the woofers are just toast at this point. Check the woofer connections first, because removing the door panels is easier than digging into the dash. If you have to get into the dash, you might just want to go ahead and install an aftermarket radio. Give us a call, and we'll help you find something that'll work for your car.

  • Chuck from Little Rock

    Posted on 4/30/2017

    I have a 2006 G6. The front tweeters work but the door speakers do not. When fading front to back there is no noise or vibrations coming from the door speakers. I am thinking the outputs on the factory radio are shot. What are the chances this is correct?

  • Jon Paulette from Crutchfield

    Posted on 12/9/2016

    Jake, The receiver/tuner option is one way to go, but if you have an existing subscription, you can go with a Bluetooth receiver, download the SiriusXM app, and play tunes using your phone. Give us a call at 1-888-955-6000. One of our expert advisors can help you find a system that suits your needs.

  • Jake from Perryville

    Posted on 12/8/2016

    From the article, if you replace the factory head unit, you lose the factory satellite radio. This being said, to retain XM radio functionality, you must purchase a satellite radio ready head unit, and separate XM radio tuner? Is this correct? For the factory radio, the XM tuner is built in to the head unit?

  • Jon Paulette from Crutchfield

    Posted on 12/5/2016

    Heather, It should fit fine, but you'll need a wiring harness adapter, too. Give us a call and let one of our advisors help you get everything you need.

  • Heather Garr from Concord

    Posted on 12/3/2016

    I have a 2005 Pontiac G6 GT with Monsoon and OnStar. We recently purchased a Pioneer FH-X720BT for my husbands 2003 Pontiac Bonneville SSei (from somewhere else) and it does not fit. My question is would the Pioneer FH-X720BT fit in my 2005 Pontiac G6 GT? What extra parts other than the steering wheel control unit would I need for it? Thanks!

  • Jon Paulette from Crutchfield

    Posted on 10/10/2016

    Kami, That's a very smart idea for an upgrade. I'll forward this 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.

  • Kami from Philly

    Posted on 10/10/2016

    Hi I have a 2006 g6 gt coupe. I was wondering how I would go about installing an aux or maybe Bluetooth so I can play media from my phone? Thanks

  • Jon Paulette from Crutchfield

    Posted on 9/6/2016

    Lyssa, A standard automotive 12-volt battery will work fine in this car. Any local garage or auto parts store will sell and probably install the right one. If you have a massive car stereo system and need some extra power, give us a call and one of our advisors can help you choose an XS Power deep-cycle battery.

  • Lyssa from Hopkinsville

    Posted on 9/3/2016

    What kind of battery does 2009 Pontiac g6 gt 3.5L take?

  • Jon Paulette from Crutchfield

    Posted on 8/2/2016

    Jack, The adapter (available at a discount when you order from us) should play nicely with the stock amp. As for the new receiver, I've sent this to our sales team, and they'll be contacting you via email soon. For immediate help, you can contact them via phone or chat.

  • Jack from Cleveland, OH

    Posted on 8/2/2016

    Hi. I have a 2005 G6 GT Sedan with Monsoon and OnStar. My 6 disc changer quit working. I'd like a new single disc radio with AUX input and to retain DIC. Will my factory amp still work is my main question?

  • Jon Paulette from Crutchfield

    Posted on 6/27/2016

    Summer, 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.

  • Summer Siebenhor from Monahans

    Posted on 6/26/2016

    Okay, I have a 2008 pontiac g6 gt. 4 door. We installed new gauges, so that all of our information is in the gauges instead of the dic. Now we are looking into installing a double den radio. What interface should we buy to be able to install this radio that will support our on star, xm, and all that????

  • Jon Paulette from Crutchfield

    Posted on 5/31/2016

    Alex, 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.

  • Alex S from Pittsburgh, PA

    Posted on 5/27/2016

    I recently bought a new radio for my 2006 G6 and noticed my wiring harness did not come with a orange wire for the illumination wire to connect to the radio to be able to dim the radio. Where is the wire?

  • Jon Paulette from Crutchfield

    Posted on 5/24/2016

    Chris, If you want to retain that functionality, you'll need to purchase a single-DIN receiver and an OEM integration kit that includes a trim kit and a wiring harness for the new receiver. It replaces the "DIC" and lets you make all the adjustments you'd normally make through your factory radio, like oil reminder, factory alarm settings, etc. This integration kit is available at a deep discount with your stereo purchase. I'll forward this to our sales team, and they'll be contacting you via email soon. For immediate help, you can contact them via phone or chat.

  • Chris

    Posted on 5/23/2016

    Hi I have an 05 g6 sedan (no on star or monsoon) I'm just curious what all is needed to change the head unit and retain the info center? I'm a bit overwhelmed lol car needs entire audio system replaced

  • Jon Paulette from Crutchfield

    Posted on 5/4/2016

    AJ, 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.

  • Aj from St Clair shores

    Posted on 5/4/2016

    2010 Pontiac g6, what interface do I use for the onstar,chime and data center do I use?

  • Jon Paulette from Crutchfield

    Posted on 3/21/2016

    James, The tool list will be included in your Crutchfield MasterSheet. As for your wiring needs, 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. Good luck with the installation!

  • James from Milwaukee

    Posted on 3/20/2016

    I have a 2008 Pontiac g6. I am replacing the rear stock speakers with "ks6930" s I also am adding an amp kicker "250w amp" as well as a kicker comp vr sub. I need all the wires etc to do the install. Can someone send me a product list of tools and wires I need to do it. This will be my first install so I also will be purchasing a instruction list from you guys too. I could also use any advice that you may have. I purchased these off of a guy on Craigslist so hopefully it all works out. Best buy wants to charge $165 for the labor of the install .

  • Jon Paulette from Crutchfield

    Posted on 2/29/2016

    Jay, Seems as though you have a pretty good idea about what you have in mind. Our sales advisors can answer your questions and help you find exactly what you need. I'll forward this along, and someone will be contacting you via email soon. For immediate help, you can contact them via phone or chat. Good luck with the project!

  • Jay from Peru NY

    Posted on 2/29/2016

    I have an 07 G6 GT convertible. I would like to upgrade the speakers without replacing the factory head. I want a great combo of highs and lows and bass would be great. Can I install a sub even though it's a convertible? Should I choose component speakers? What would be the best "makeover" that keeps in mind quality and budget?

  • Jon Paulette from Crutchfield

    Posted on 11/30/2015

    Kevin, Absolutely. There are some powered subs that should work nicely in your G6. If you have any questions, just give us a call.

  • Kevin M Breeden from Herndon

    Posted on 11/29/2015

    Is it possible to add a small sub without removing the factory head unit?

  • Jon Paulette from Crutchfield

    Posted on 11/5/2015

    Emalee, I've forwarded your question to our sales team for the best answer. They'll be contacting you via email soon. For immediate help, you can contact them via phone or chat.

  • Emalee from Wilmington

    Posted on 11/5/2015

    Hi I have a 2008 Pontiac G6 GXP with a Monsoon system in it and my front left speaker is going out ); where could I purchase one at and what size is the speaker? Thanks :)

  • Jon Paulette from Crutchfield

    Posted on 10/2/2015

    Oscar, Eliminating the Driver Info Center shouldn't set off any alarms. The key is to use the right wiring harness when you install your new stereo. When you buy your receiver at Crutchfield, we'll not only make sure you get the right harness, we'll also give you a very nice discount on the price.

  • Oscar

    Posted on 10/1/2015

    Do i need the readout system thats on the factory radio on my pontiac g6? If i get rid of the readout feature by installing a new radio will that cause me any issues? Will it make my check engine light come on?

  • Jon Paulette from Crutchfield

    Posted on 9/16/2015

    Alexus, The Pioneer you have is a single-DIN unit, so it should fit your G6. Most any car audio shop will be able to handle the installation for you.

  • Alexus Pollack from Lexington

    Posted on 9/15/2015

    I Have A 2005 Pontiac Sedan, I'm Wanting To Install A New Radio In My Car. The Radio I'm Wanting To Install Is A Pioneer Radio DEH-X6600BT. Would That Be Compatible Or Where I Could Get This Done At?

  • Jon Paulette from Crutchfield

    Posted on 8/5/2015

    Chris, To the best of our knowledge, no.

  • Chris Scott from Fort dodge

    Posted on 8/4/2015

    Does the g6 gt coupes have a factory remote on with out the monsoon system?

  • Jon Paulette from Crutchfield

    Posted on 8/3/2015

    Cindy, We don't have a part number for the rear deck, but you should be able to find that info online. You could also check with your local GM dealership.

  • CINDY DUGAN from Massillon

    Posted on 7/31/2015


  • Jon Paulette from Crutchfield

    Posted on 7/31/2015

    Sharifa, If you're thinking about swapping in a set from another vehicle, you should probably visit an online owners' forum and see what your fellow G6 owners have to say. Our guess is that it might be somewhat complicated, so you might want to look into a set of aftermarket speakers instead. Good luck!

  • sharifah from newark

    Posted on 7/31/2015

    Hi I have a 2006 pontiac g6 gt sedan and I love my radio sound but i wanted to upgrade the speakers to bose speakers is that even posssible

  • Jon Paulette from Crutchfield

    Posted on 6/30/2015

    Steve, We haven't done that particular installation, so I'm hesitant to give you a definitive yes or no. For advice on factory-to-factory swaps, your best bet is to check out an online owners' forum and see what your fellow G6 drivers have to say. Good luck!

  • steve from ct

    Posted on 6/30/2015

    Does the 2009 g6 stock radio w/aux plugin fit in the 2005 g6

  • Alexander Hrabe from Crutchfield

    Posted on 5/11/2015

    Justin, It appears that the front woofers in your vehicle will fit 6-3/4", but you have other choices as well, using brackets. Give us a call, and an advisor can help you select the replacements that are right for you. Or if you order through our website, be sure to enter your vehicle information. Depth and bolt pattern factor into compatibility as well.

  • justin nolen from 45662

    Posted on 5/9/2015

    I have a 2007 pontiac G6 GT convertible. I was wondering what were the exact size of the front speakers. I know there is a tweeter and a 6 3/4 but what about the other speaker. Thanks in advance.

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