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2006-2008 Dodge Ram Mega Cab

2006 • 2007 • 2008

2006-2008 Dodge Ram Mega Cab pickup

In a Nutshell

This article will explain how to install new car stereo gear in your Ram. Check it out and then use our vehicle selector to find the gear that will fit your truck. 

At this point, the factory speakers are probably the weakest link in your Ram's audio system. Replacing them will be the quickest way to achieve a noticeable improvement in sound quality. There are lots of replacement options to choose from and installation is straightforward.

Replacing the factory radio (especially the base AM/FM/CD model) will give you access to a whole new world of entertainment options. And, of course, your new speakers will sound even better with the extra power from a new stereo

Adding an amplifier and a subwoofer might seem like a bit much in a pickup truck, but it really isn't. Especially not in this big truck. Even if you don't like to crank your music at max volume, you'll notice a distinct improvement in every aspect of your favorite songs.

Full Story

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.

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 how to install a car stereo or speakers in your Ram pickup, there's nothing better than our exclusive Crutchfield MasterSheet™. This detailed, well-illustrated document is free with your Crutchfield order, or you can purchase one separately for $9.99.

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 Cab 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.

That's not really a problem, 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.

Replacing your 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)


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 in a row. (Crutchfield Research Photo)


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.

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. 

Complete, step-by step instructions for radio and speaker removal can be found in the illustrated Crutchfield MasterSheet, which is included free with your stereo or speaker purchase.

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

Steering wheel audio controls

It's relatively easy to retain your Ram 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 your new receiver.

Shop for car stereos that fit your Dodge Ram 1500

Replacing your 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.

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. 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.

Note for the 7-speaker systems – in these trucks, the front door woofers only produce bass. If you replace them, the new speakers will also only produce bass unless you run new speaker wiring from your new receiver to the new speakers. 

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.

Start by removing one 10mm screw from the rear of the door release handle and one Phillips screw located above the handle. Remove two Phillips screws from the bottom edge of the door panel, then work your away around the sides and bottom of the door with a panel tool to release the pressure clips holding it in place. Next, lift the door panel straight up. Disconnect the wiring harnesses and remove the panel, then remove three Phillips screws securing speaker/bracket assembly, disconnect the harness, and pull the speaker out.

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. Always be careful when drilling in a vehicle, and be sure to 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

Shop for speakers that fit your Dodge Ram 1500

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.

JL Audio Stealthbox

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

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.

Shop for vehicle-specific subwoofers for your Dodge Ram 1500

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.

Crux CLP-12 rear view camera

Crux CLP-12 rear view camera

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.


Installing a security system or remote start in a Dodge Ram pickup (or any vehicle, for that matter) is a challenging endeavor. If you have experience with this sort of work, you'll be okay. If you're a novice installer, we recommend that you turn the work over to a car audio professional.

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.

  • 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.

  • 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.

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