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How to install sound damping material in your car

Cutting down resonance and road noise

It's no secret that road noise has a negative impact on your music. It smothers the details and forces you to abuse your speakers by cranking up the volume. 

The good news is that you can cut down that road noise dramatically by installing a sound-damping product like Dynamat. These noise deadeners work by absorbing sound-causing vibration energy, eliminating speaker resonance, and baffling out excessive sound. 

Sound-damping products are easy to install. Sticky, but easy. Take a look at this video to see how it's done. 

Video: How to install Dynamat on a door panel

Learn more

For more information, read our guide to choosing vibration damping products. Be sure to browse our full selection of sound deadening products and also our selection of pre-cut, vehicle-specific sound deadening kits. And contact our advisors is you have any questions. 

  • John Newburn from Soap Lake

    Posted on 7/23/2021

    Any sound deadener should be applied to the inside of the door skin, speaker mounting panel, and on the inside of the door card.

  • Steve from Charlotte

    Posted on 3/9/2021

    Great information...thanks

  • Shrikant from Sunnyvale CA

    Posted on 12/3/2018

    Hello, I have a 2003 Mitsubishi Lancer O Z R with 180 K miles. Its a simple passenger car. I know its old. I love it, maintain it well with performance parts, and use it for commute. Its known that Mitsubishi never did anything to cut noise. I want to do sound deadening. I see a lot of videos, but honestly, I cannot do it myself. Could anyone please suggest me some shop around 94086 Sunnyvale CA, where some pros could do it for me ? I am okay driving up to 100 miles one way for a good shop. Regards, Shrikant

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    Buck Pomerantz from Crutchfield

    on 12/3/2018

    Shrikant, A Google search for "car audio installation Sunnyvale CA" brought up three shops in your immediate area. I can't recommend one over the other, but you can check out the online reviews to decide which to use.
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    Buck Pomerantz from Crutchfield

    Posted on 3/9/2018

    Charles, To do its job, Dynamat must be applied to your car's metal panels.

  • Charles from Omaha

    Posted on 3/8/2018

    I'm hesitant to take out the carpet of my vehicle to install the Dynamat. Would it do any good to place the dynamat pads between the carpet and my all weather floor mats?

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    Buck Pomerantz from Crutchfield

    Posted on 11/17/2017

    Tamara, Yes to both questions. Installing Dynamat cuts down on resonance, rattling, as well as insulates against the transfer of noise into and out of your vehicle.

  • Tamara from Dothan

    Posted on 11/17/2017

    Will this help prevent your car from eventually having "the rattles" from bass? And does it help with what people can hear outside of your car?

  • Commenter image

    Buck Pomerantz from Crutchfield

    Posted on 9/5/2017

    Darren, A low-frequency exhaust drone is hard to eliminate, it seems to come from everywhere. Start by applying sound-deadening material to the floor directly above the mufflers. The more massive amounts of material used on your vehicle's floor, the quieter will be your ride.

  • Darren

    Posted on 8/28/2017

    I want to deaden drone sound from my exhaust. What area/s should I install this item to reduce noise?

  • Commenter image

    Alexander Hrabe from Crutchfield

    Posted on 8/24/2017

    Jensen, here are our sound-deadening materials. You'll want to isolate the trouble spots for noise before applying the material. For more information on sound-deadening materials and application, check out this article and this one.

  • Jensen from ewa beach, hawaii

    Posted on 8/22/2017

    I just bought a Nissan frontier pick up truck and it is noisy in the back, of my seats, road noise, do you have a package r ways to reduce the noise and where to glue them to? thanks Jensen

  • Commenter image

    Buck Pomerantz from Crutchfield

    Posted on 1/10/2017

    Brad, Anywhere and everywhere you can add sound-damping material will help reduce road and exhaust noise. Check out this article about applying different sound deadener and isolation products and their effects on noise reduction.

  • Brad from Chicago

    Posted on 1/10/2017

    I've replaced a Lexus with a 2013 VW Tiguan and recently installed an aftermarket exhaust system... so the new vehicle is quite a bit noisier. I'm not worried about the stereo; I'd like to cut down on the noise the Turbo 4 cylinder engine makes, the road noise, and the exhaust drone. If I lined the floor beneath the carpet with Dynamat, would that make a difference? I know Dynamat is good for lessening vibration, how does it do on noise? Would a hood liner help? In the back behind the back seat, there's a compartment for the spare tire (which is right above the muffler). It's a flat floor. Is there some type of thicker (like half inch) foam I could put down? I know I can't kill all the noise and make it as quiet as the Lexus, but what's the easiest way to maybe kill half of the noise?

  • Commenter image

    Buck Pomerantz from Crutchfield

    Posted on 1/6/2017

    Billy, The rule for sound damping application is "more is better." You might want to check out this article about how it was done in one of our former employee's 2004 F-150.

  • Billy Ring from Houston

    Posted on 1/5/2017

    I'm awaiting my dampner i ordered along with a ccf (2003 f150) . Got new hu for xmas (jvc kd-r370) your master sheet was helpful . New pioneer ts-a6886r in doors and rear pillars - sounds good . My question is cld then ccf on both door and panel or just on door ? I'll have 36sqft

  • Fred Liebes from Fairfax, CA

    Posted on 4/27/2016

    What about a closed cell foam "decoupler"? Some say the decoupler should be applied first, which makes some sense; and then the dynamat or Mass Loaded Vinyl. But the adhering in that order strikes me as problematic. It seems like most of the world applies the MLV first, with good results. The Decoupler makes sense, in that it isolates the source of the road noise. That's how it's done in buildings.

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    Buck Pomerantz from Crutchfield

    Posted on 1/15/2016

    Kris, We recommend you start your road noise reduction install with the doors. Doors in most vehicles are particularly thin, and let in noises right at ear-level. Later, you can cover the floor as well for even more noise-reduction.

  • KrisMay from Tuguegarao City

    Posted on 1/15/2016

    What do you recommend for the minimal installation with most effect on dropping the road noise, all doors or the whole floor?

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    Buck Pomerantz from Crutchfield

    Posted on 6/18/2015

    Jonathan, Yes, applying sound deadening material to door panels will help get rid of resonances and road noise.

  • Jonathan

    Posted on 6/17/2015

    any sound deadening material used inside the panel behind speakers?