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2006-2008 Dodge Ram Mega Cab

How to upgrade the stereo system in your Ram Mega Cab

2006-2008 Dodge Ram Mega Cab pickup

In brief: This Crutchfield Research Garage article gives you an overview of your Ram'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 truck.

Overview of the Ram Mega Cab pickup

When it comes to full-size pickup advertising you hear plenty of talk about (cue raspy macho voiceover) "power, torque, and towing capacity." You don't hear so much about style, mostly because it's probably hard to talk about that sort of thing in a raspy, macho voice. That's kind of a shame, because Dodge trucks have been some of the best-looking pickups on the road for the last couple of decades.

With lines that evoke both the Power Wagons of the past and the semi-trucks of the current day, Dodge trucks have maintained just the right mix of curvy and curmudgeonly through several incarnations. The Ram truck's 2006 mid-cycle update, for example, added bigger, brighter headlights, but there's no mistaking this Mega Cab for anything other than a Dodge.

As per standard light truck procedure, the Dodge Ram was available in three different weight classes. The cabs and the disassembly instructions are the same whether you have a 1500, 2500, or 3500, so we've divided the line by cab configuration.

The factory stereo system

The Ram Mega Cab's base radio was a trusty AM/FM/CD receiver with four speakers, and the upgraded version featured an Infinity system with an AM/FM/MP3 receiver, a 6-CD changer, and seven speakers. A navigation receiver could also be paired with the 7-speaker stereo. These systems range from okay-ish to not-bad, but in a brash, brawny truck like this, that's just not going to cut it.

dodge ram mega can factory radio

The Ram was available with several different receivers (Crutchfield Research Photo)

Due to the vehicle's dash configuration, an aftermarket receiver with a retractable screen may not work, and a receiver with a fold-down face definitely won't work. Finding a receiver that will work is pretty easy when you visit our Outfit My Car page, but some of the factory features that may be present in your truck, like Uconnect®, satellite radio, and DVD playback, won't work anymore after you replace the stock radio.

That's not really a problem, though, since all those functions can be replaced and improved with the right aftermarket stereo. A variety of single-DIN (2" tall) and double-DIN (4" tall) receivers will fit in your Ram truck, so you have plenty of options.

Removing the factory radio

Does your truck have a console? If so, is it a half-console or a whole console? How you answer that question will determine how you're going to go about removing and replacing the factory radio. The "half" console has three cupholders that form an "L" shape, while the "full" console has three cupholders that are all in a line. You'll need to deal with the cupholders to get to the radio.

Of course, if your vehicle is not equipped with a console, you can skip ahead to the part that applies to all trucks.

Dodge Ram Mega Cab half-console

Ram Mega Cab with the half console (Crutchfield Research Photo)

Half-console trucks

You'll start on the left side of the console. Some 4WD trucks have a transfer case shifter in this location, in which case you'll need to remove the rubber boot. Pry up the insert in the top of the shift knob, then remove the exposed nut. Pry around the perimeter of the shift boot and lift it over the shifter. That will expose two 8mm screws, which you'll need to remove. Other trucks have a pen tray here, instead of a shifter. In that case, you'll need to pry up the tray, then remove the two exposed 8mm screws.

Next, you'll pry up the cupholder tray, remove another two exposed 8mm screws, then lift the tray up and out of the way. Remove two 8mm screws from the forward storage tray, and pull it out. Remove the two 8mm screws under the lower dash trim, remove the trim, then remove two more Phillips screws exposed when you removed the trim.

dodge ram full console

The full console has three cupholders arranged in a row. (Crutchfield Research Photo)

Full-console trucks

For the full-console model, you'll start at the rear edge and pry up the console/cupholder panel to release the retaining clips. Pull the panel upward and rearward to remove it. Remove the three 8mm screws from the console base, then pull up the console base to remove it.

Next, remove two 8mm screws in the lower dash skirt and remove the skirt. Pull the lower dash trim downward to release the retaining clips and pull off the trim. That will expose two 8mm screws, which you'll also need to remove.

All trucks

The following steps apply to all Rams, so you non-console folks can start paying attention again.

Place the gearshift in the lowest position. Starting at the top edge of the receiver trim panel, pry across the top and sides of the trim panel to release the retaining clips. Be sure to use a pry tool, or at the very least, put a thick sheet of paper behind the panel to protect it. Pull the panel out, disconnect the wiring harnesses, and remove. The factory radio is held in place by four Phillips screws. Remove them, disconnect the harness, and remove the 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.

To install your new receiver, you need a dash kit, which is available at a deep discount when you buy your stereo from Crutchfield. You'll also save big on the wiring harness adapter you need to connect your receiver to the factory wiring. If your truck is equipped with Uconnect and you want to retain that functionality, a special wiring interface is available for that, as well. Our Outfit My Car tool will show you what you need.

Tools needed: Phillips screwdriver, small flat blade screwdriver, 8mm socket, ratchet and extension, panel tool, and a thick sheet of paper or shop rag

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

Shop for car stereos that fit your Dodge Ram 1500

Steering wheel audio controls

In most cases, it's reasonably easy to retain your truck'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 a compatible aftermarket receiver.

Dodge Ram Mega Cab door speaker

Speaker replacement is a great way to improve the sound in your Ram (Crutchfield Research Photo)

Removing the factory speakers

The Ram Mega Cab's 4-speaker system has speakers in the front doors and, depending on the cab, somewhere behind the rear seat. The optional 7-speaker Infinity system adds speakers on each side of the dash and a small fill speaker in the center.

Trucks with the Infinity speaker system

The Infinity system's front door speakers only receive bass frequencies from the factory amp. That means any new speakers you install will also only receive (and play) bass. To get the best possible sound upgrade, you should also replace the dash corner speakers, preferably with the same brand as your new 6"x9"s.

Dodge Ram Mega Cab front door speaker

The front door speakers aren't hard to reach or replace (Crutchfield Research Photo)

Front door speakers

The factory 6"x9" front door speakers can be replaced by same-size, 5-1/4" or 6-1/2" speakers. A speaker adapter bracket is required for the smaller ones, and it's available at a steep discount with your speaker purchase. Remember that if you have the Infinity system, these door speakers only play bass, and the same goes for your new speakers, too.

You'll need to remove the door panel, which is a reasonably basic procedure involving a panel tool and some other basic tools. Be sure to keep the screws you remove from the doors (or anywhere in the truck) organized, because you'll probably need them again when you put everything back together. It's also a good idea to test speaker operation before you the reinstall the panel.

Complete instructions for speaker removal can be found in your Crutchfield MasterSheet, of course.

Tools needed: Panel tool, Phillips screwdriver, 10mm socket, ratchet and extension

Dodge Ram Mega Cab rear door speaker

A variety of speakers will fit into the rear door (Crutchfield Research Photo)

Rear door speakers

You have plenty of options when you replace the Ram Mega Cab's rear speakers. The factory speakers are an oversized 6-3/4" design and regular 6-3/4", 6-1/2", and 5-1/4" aftermarket speakers will work. You'll need to re-drill the mounting screw holes for standard 6-3/4" models, or use a mounting bracket (included with your speaker purchase) for the smaller models.

No matter which size you choose, your replacement speakers probably won't include mounting screws, so it's a good idea to check before you start the installation. Better to make that run to the hardware store sooner than later.

If you're installing 6-3/4" speakers, you'll need to place the new speaker in the cavity and mark the new mounting holes with a felt-tip pen before you set the speaker aside and drill the new holes with a 1/8" bit. Work carefully, wear eye protection and take note of what's behind and around the place where you're drilling.

To install your new speakers, connect the new speaker's wiring adapter to the vehicle's speaker harness and secure the new speakers to the door with screws. Be sure to test the speakers before you button everything up again.

Tools needed: Panel tool, Phillips screwdriver, 10mm socket, ratchet and extension, drill and 1/8" bit (for 6-3/4" speakers)

Dodge Ram Mega Cab center dash speaker

Removing the center speaker (Crutchfield Research Photo)

Dash speakers

Whether you're removing the 3-1/2" speakers in the corners or the small (around 1-1/2") speaker in the center, the tools and techniques are the same. For simplicity's sake, we're only showing a photo of the center speaker, but you'll get all the visuals you need in your Crutchfield MasterSheet.

Pry across the edge of the vent/speaker grille trim panel to release the retaining clips, then pull the panel towards the rear of the vehicle. Remove two Phillips screws from the speaker, then pull it out, and disconnect it.

Tools needed: Panel tool, stubby Phillips screwdriver

Read our Car Speakers Buying Guide for more information.

Shop for speakers that fit your Dodge Ram 1500

JL Audio Stealthbox

This JL Audio Stealthbox is designed to fit your Ram Mega Cab truck

Bass in your Dodge Ram

There's a certain amount of room for a sub enclosure in your Ram Mega Cab, but it's not exactly "mega." You have a 25" W x 16" H x 5"/11" D space to work with, so there's room for something interesting back here, but you might want to take a look at a more customized solution – like the JL Audio Stealthbox.

This Stealthbox enclosure is designed specifically for use in 2006-08 Dodge Ram Mega Cab pickups. It fits behind the driver side rear seat, and rocks your truck with a pair of JL Audio W6v3 10" dual voice coil 4-ohm subs. While this is not the hardest DIY job ever, it is a challenging bit of work. If you're not terribly experienced with this sort of thing, you might want to have the work done by a car audio professional.

If you're looking for something a bit more subtle (and possibly a bit easier to install), a powered subwoofer is another great choice.

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

Shop for vehicle-specific subwoofers for your Dodge Ram 1500


Seal in sound by putting some Dynamat in your doors.

Other options for your Ram Mega Cab

There are lots of things you can do to improve the utility and comfort of your Ram Mega Cab. Here are a few ways Crutchfield can help.

Rear-view cameras

The Dodge Ram Mega Cab is an enormous vehicle that's made for wide-open spaces, not crowded parking lots. A rear-view camera will really help increase your visibility and safety when your busy day takes you into town. And a camera is also a huge help when you're backing up to a trailer.

Sound damping

Your Ram is a big vehicle with big doors and a big grille, so it punches a big hole in the atmosphere. To prevent wind noise and road roar from undoing the great work your new stereo is doing for you, make sure you install Dynamat when you're replacing your speakers. This soundproofing material will dampen the sounds you don't like, so you can get more enjoyment out of the ones you do.

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.

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 of your own, give us a shout via phone, chat, or email

  • Chris from Las Vegas

    Posted on 12/28/2020

    I am looking at door speakers for a 06 megacab with infinity sound. When I select components it says the door will get bass and move the tweeters to the dash. Do I still need the components crossover? That's the part that confuses me. I have a JLaudio HD9005 amp I want to run for my door speakers and the JL audio stealth box I already have. I would like to keep the dash speakers just not sure how to wire it for the amp and what speakers will work of the head unit amp vs the 9005 amp. Are the rear speaks full sound or bass/mid bass too?

    Commenter image

    Jon Paul from Crutchfield

    on 12/29/2020

    Chris, 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.
  • Drew Gerhart from Murfreesboro

    Posted on 9/11/2020

    Great article. Anything that can be done since the factory radio has the odd shape with the volume and tune knobs? Or do we just have a couple random voids now?

    Commenter image

    Jon Paul from Crutchfield

    on 9/14/2020

    Drew, To install your new receiver, you need a dash kit, which is available at nice discount when you buy your stereo from Crutchfield. You'll also save big on the wiring harness adapter you need to connect your receiver to the factory wiring. When you enter your vehicle's info into our Outfit My Car tool, you'll see which stereos fit your truck, plus the correct installation gear. If you have any questions, our advisors are available via phone or chat.
  • Robert

    Posted on 5/6/2019

    This is good information but what about us guys with factor entertainment systems. I have had a very hard time finding information on hooking the entertainment system into a aftermarket stereo.

    Commenter image

    Jon Paul from Crutchfield

    on 9/12/2019

    Robert, With something 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.
  • Commenter image

    Jon Paulette from Crutchfield

    Posted on 1/30/2017

    Nik, That all depends on the amp. When you have a sec, give us a call and talk to one of our advisors about this. A little discussion can make a big difference in getting the gear you need.

  • NIK C. from Flagstaff

    Posted on 1/29/2017

    Good information here. What are you guys reccomending for a remote amplifier signal wire with a factory head unit? I am upgrading my stereo in steps, with he head unit being the last step. I've replaced all of my door speakers and have an amp & sub. In the mean time, prior to installing an after market head unit, I have pulled the factory deck and wired a Line Output Converter and have routed my RCA's to the amp. I've also routed power and a signal wire. My last step is to find a source to turn on the amp. I'd prefer to have it come from t he stereo, so the amp is off if the stereo is off, instead of grabbing the ignition power from say, the 12v plug in the dash.

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