Sound deadening doors?

[dedonderosa]

Just curious to know who has sound deadened their doors on their 4R? i dont know if im just too anal but i just had the way the doors sound a feel when you open and close them, sound way too tinny/light. anyone else feel the doors are just too light and dont feel solid and give that tinny noise lol.

if so what brand or mil thickness have you guys gone with? thanks

 

[Engineer]

Just curious to know who has sound deadened their doors on their 4R? i dont know if im just too anal but i just had the way the doors sound a feel when you open and close them, sound way too tinny/light. anyone else feel the doors are just too light and dont feel solid and give that tinny noise lol.

if so what brand or mil thickness have you guys gone with? thanks

I did, used RAAMaudio products and have been very happy with the results, makes it shut more like LC200 Door

 

[GearJunkie88]

Just curious to know who has sound deadened their doors on their 4R? i dont know if im just too anal but i just had the way the doors sound a feel when you open and close them, sound way too tinny/light. anyone else feel the doors are just too light and dont feel solid and give that tinny noise lol.

if so what brand or mil thickness have you guys gone with? thanks

I used Dynamat. Worked great. I’m sure there are lots of similar brands that are also great.

 

[llDemonll]

Sound Deadener Showdown | Your Vehicle Quiet

This has all the correct info for sound deadening

 

[Jdog]

I haven't yet, due to sort of short notice taking another trip to Moab for a few days but when i get back i will be putting soundskinz in mine. I have seen a few good things about them. But i believe like above me its all similar and really cant go to wrong, especially with youtubes help.

 

[rayofsi]

Just curious to know who has sound deadened their doors on their 4R? i dont know if im just too anal but i just had the way the doors sound a feel when you open and close them, sound way too tinny/light. anyone else feel the doors are just too light and dont feel solid and give that tinny noise lol.

if so what brand or mil thickness have you guys gone with? thanks

would you do this job on other 4runners? lol

 

[johnbt]

I had a shop install Focals in February of 2018 and it made a huge difference when closing the doors. I'd almost forgotten how tinny the doors originally sounded. From my post in the Focal thread...

"They used 36 sq.ft. of Hushmat - two layers in each front door & just one on the metal in the rear doors."

They said the front doors got one layer on the metal and one at the end to box the speakers in.

 

[salong53]

I did the inner and outer skins of all 4 doors with Kilmat that I bought from Amazon for about $60. It took about 1.5 hours per door. I hoped it would reduce road noise, but if it did it was only slightly. The biggest benefit was the improvement in audio quality and reducing the "tinny" noise in the doors.

 

[Auntie Soshul]

I didn’t use a sound deadener but did install a vibration dampener (Dynamat) in all doors, including the back hatch. It made a noticeable difference in how the doors sounded when they were shut, and made them seem more solid as far as the sound from the speakers. It didn’t make a noticeable difference in road noise, though, that I could tell. There are plenty of other posts on this forum about other owner’s experiences.

 

[tigger]

I did the 3 step treatment to my doors and floors. Made a huge difference in noise level. But was a crazy amount of work,

Noise Reduction Install

 

[Speedy Babo]

Didn't go all out in my 4runner like trigger did. I did in my prev car, a subaru, but was lazy this time and its a much bigger car. I used sound deadener showdown products (looks like he retired).

Did all 4 doors, tailgate, roof, sides, just not floor panel and front firewall.
CLD tiles 80mil butyl and 8mil foil to cover about 30-40% of the surface area and straight up butyl itself to stick between support bars that came really close to any sheet metal. Closed cell foam as a decoupler. Then used 3M thinsulate in the doors, tailgate, and roof instead of MLV (mass loaded vinyl) for sound reduction.

The CLD or any butyl type product (dynamat, secondskin, etc.) is great for reducing vibration and enhances the sound quality from any speakers, including the stock ones. You really need a heavy barrier like MLV to really block the sound. I was able to get my hands on 3M thinsulate for cars so I went mostly that route for the 4runner.

 

[Bumbo]

I haven't done it yet... but would like to. It's a matter of finding the time because I would do it myself.

I know it makes a difference but all the reports of not reducing road noise isn't helping... Seems like its better for speaker acoustics.

I thought 3M thinsulate was just for thermal insulation... I never considered using it for acoustics. I'll have to read into this more.

 

[Rapid_Amble]

I installed dynamat vibration dampener + closed cell foam in the front doors when I replaced the speakers. It reduced road/tire noise and music sounds much better, but note the windows aren't Lexus quiet. I'm impressed enough to keep going and will do the rear doors and hatch sooner or later.

 

[Orc]

The roof panel flops in the car wash fan wind... it's a thin built truck.

 

[rlarroque]

Just curious to know who has sound deadened their doors on their 4R? i dont know if im just too anal but i just had the way the doors sound a feel when you open and close them, sound way too tinny/light. anyone else feel the doors are just too light and dont feel solid and give that tinny noise lol.

if so what brand or mil thickness have you guys gone with? thanks

With what we're setup with from the start, any brand will help tremendously. I used dynamat. The speakers will sound a little better and you will knock out a good amount of road noise. I say go for it.

 

[dedonderosa]

thanks guys for all the responses, im not looking to go crazy doing it but did you guys do the outer door skin part (farthest out) and the inner shell part where the speakers are? or just one ?

 

[The Waco Kid]

thanks guys for all the responses, im not looking to go crazy doing it but did you guys do the outer door skin part (farthest out) and the inner shell part where the speakers are? or just one ?

Both.

I've added Noico CLD (80ml) tiles to 3 of my 4 passenger doors and the rear floor in the cargo area using this as my guide (its a work in progress):

Sound Deadener Showdown | Your Vehicle Quiet

This has all the correct info for sound deadening

The difference between how the door sounds when closing, and the feeling (heft) when shutting the door is massive. That said, overloading the door with CLD tiles will not do much in the way of reducing road noise levels, and is not as cost efficient or as effective as say MLV. That said, I did both outer and inner door panels and it's a fairly easy job aside from trying to squeeze your hands and the pieces of cdl into tight places.

I plan to finish the last door and rear hatch with CLD this month, then I'm looking at adding Secondskin Luxury Liner Pro on top of that for road noise or some other MLV/CCF combo later down the road.

I think Tigger's build is a great example of our application and something I'd try to emulate if possible. Taking apart the interior isn't hard, it's just tedious and time consuming given all the fasteners and things that need to come out before you can actually start adding what you need. The hard part is trying to determine how much you can add without obstructing the function or fitment of anything in the car.

 

[Offwidth]

Just curious to know who has sound deadened their doors on their 4R? i dont know if im just too anal but i just had the way the doors sound a feel when you open and close them, sound way too tinny/light. anyone else feel the doors are just too light and dont feel solid and give that tinny noise lol.

if so what brand or mil thickness have you guys gone with? thanks

I did. It is very noticeable for music quality, with better speakers especially, less noticeable on road noise, though there is some effect.

20% effort 80% effect approach here is just to put a bunch of sticky butyl mats - I like Noico brand for price to quality - 50% coverage for outer door is enough to stop most vibrations.
One could go obsessive with covering every inch, but I think those are rapidly diminishing return.

Took me about 40min to do per door, including installing speakers. (Ordered Focal TOY models out of Italy. Cheaper shipped than most deals I found in US)

 

[Offwidth]

I know it makes a difference but all the reports of not reducing road noise isn't helping... Seems like its better for speaker acoustics.

Great sounding audio has an effect of reducing road noise distraction.

 

[DreamsOfDirt]

Below is the link to my write up on sound deadening, including a few tips and tricks to help you avoid the mis-steps I made.

As others have noted:
1. CLD (Dynamat, Sound Skin, etc) will help with audio and the solid feel/sound of the doors, not with road noise. For that you need Mass Loaded Vinyl. I'm planning to do add some Second Skin Luxury Liner Pro for that purpose when the weather warms up.
2. You do not need to cover every inch of the door to stop the sound vibration. What's in my write up is overkill.
3. Do both the inner and outer skin -- it makes a difference. I actually added some to the back of the door trim as well. It helped with the vibrations from the audio, but they are certainly still there. One word of caution, I'm not certain how doing this 3rd layer of CDL will impact my ability to fit the MLV. I may need to pull some off.

Finally, if you're reading through my thread you'll see that I chose Sound skin because it has the acoustic foam attached to the CLD, which other types don't. I like the product a lot, but I'm not certain how much difference it makes. It's not anywhere near the thickness of the foam you use (or should use) with MLV. Bottom line - I like Sound Skins and would use them again, but I don't think the foam made as much of a difference as I was originally thinking it would.

Good luck!

Sound Deadening Project Write Up