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Discussion Starter #1 (Edited)
As I did with my Honda Fit, I also did this to my Kona, but to a lesser degree since I have added some heavy tar based sheets for my speaker install. (15 lbs worth) on this install I will add "light" sound proofing. I use fire proof Roxul house insulation. It is made out of lava rock, basically lava rock cotton candy. It is also water proof and mold proof. I use this stuff if I am soldering copper air lines at work up against the ceiling and wall. This can take the heat of full blown MAPP gas torch so I done get any heat on the ceiling or wall when soldering .

Home depot use to stock the bags, but I only see the pallets on their site. Also Menards sells Owen Corning version of it too below but was on Home Depots site so I posted it. They too could have it on site in the Owens brand.


https://www.homedepot.com/p/ROCKWOOL-Safe-n-Sound-3-in-x-15-1-4-in-x-47-in-Soundproofing-Stone-Wool-Insulation-12-Bags-RXSS31525/205972532

https://www.homedepot.com/p/Owens-Corning-15-in-x-47-in-Thermafiber-Fire-and-Sound-Guard-Mineral-Wool-Insulation-Batt-SG-25-P3-15-47-221/303347027?MERCH=REC-_-NavPLPHorizontal1_rr-_-NA-_-303347027-_-N

I NORMALLY add this to the whole backside of the front and back doorskin with light use of double sides tape so it barely holds in place at a 45 deg angle. Again since I have 15 lbs tar sound proofing in my driver doors I am passing on installing it there for now. You tare or cut to size and delaminate it to what thickness you need. As you can see by the pictures I added it to both rear side wheel well covers, back spare cover (<--will tuck the excess back up), rear seat side plastic radius trim piece, front foot kick sides and lightly in the side channels. That should help reduce some of the sound infiltration. I mistakenly added it to the area where my trailer wiring convertor was and had to open it back up again and take some out around the convertor to give it some breathing room with it's heat.


Attention::: Hyundai wants to make profit on YOU and has designed their side trim hold on taps to break 65% of the time. Have a bag of these before you try anything. Don't worry on the different coloring, these work.



https://www.amazon.com/gp/product/B01B165VPA/ref=oh_aui_detailpage_o03_s00?ie=UTF8&psc=1





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Thanks for sharing the photos and comments as well. There is also some stick backed sound proofing blanket available with a silver backing. If I ever get to this point I'll add some.:smile:

Blessings and Peace
 

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Discussion Starter #3
Thanks for sharing the photos and comments as well. There is also some stick backed sound proofing blanket available with a silver backing. If I ever get to this point I'll add some.:smile:

Blessings and Peace

I have 15 + lbs of that blanket soundproofing in my front doors. When I get my rear speakers I will add some more, but no way do I want to add any more weight. The stuff is like lead sheets. Adding the Roxul added about 1 lbs of weight. The Dynamat you speak of is basically "mass loading" for vibration and while it does stop sound, it doesn't do it as well as closed cell or Roxul insulation.



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Thanks, I'm aware of the Dynamat but there is another one to two inches thick and pliable with a sticky backing. It's an acoustic barrier as I remember. I'll have to look around, I can't remember where I saw it right off hand.:smile:

This is a couple companies that have allot of acoustic barriers but it's not the one I'm thinking of but I'll find it.

https://www.soundproofcow.com/product-category/sound-absorption-materials/quiet-board-water-resistant-panels/
https://www.3m.com/3M/en_US/company-us/all-3m-products/~/All-3M-Products/Automotive-Products/Acoustics-NVH-/Automotive/OEM-Tier/?N=5002385+8709313+8711017+8711413+8716712+8719976+3294857497&rt=r3

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Just received my replacement speakers from Crutchfieldcanada. Wow were they fast! Ordered Mon afternoon, arrived Tues afternoon.
Was considering (its sitting in my Amazon cart) adding some Noico 80 mil mat to the inner doors and trunk/ spare area while undertaking the swap.

I'm a little nervous about removing the panels and liner, and wondering if all the effort would provide a noticeable improvement.
Not expecting a drastic or comparable to thousands of $ install improvement. All in I'm at $150 for 4 speakers, potentially $100 for the mat, spare clips & such.
Just a slight improvement to road noise and music quality.

If I do, I'll be shooting a little video on removing the panels & swapping the speakers. If at the least, as evidence for if I screw something up.
Planning on attacking this weekend, so I'll post up results once completed. Taking all luck and suggestions ya'll are willing to share.
 

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Ask Maina1 he would advise you the best. He's been there done that already.

Blessings And Peace
 

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Discussion Starter #8 (Edited)
Just received my replacement speakers from Crutchfieldcanada. Wow were they fast! Ordered Mon afternoon, arrived Tues afternoon.
Was considering (its sitting in my Amazon cart) adding some Noico 80 mil mat to the inner doors and trunk/ spare area while undertaking the swap.

I'm a little nervous about removing the panels and liner, and wondering if all the effort would provide a noticeable improvement.
Not expecting a drastic or comparable to thousands of $ install improvement. All in I'm at $150 for 4 speakers, potentially $100 for the mat, spare clips & such.
Just a slight improvement to road noise and music quality.

If I do, I'll be shooting a little video on removing the panels & swapping the speakers. If at the least, as evidence for if I screw something up.
Planning on attacking this weekend, so I'll post up results once completed. Taking all luck and suggestions ya'll are willing to share.



Buy the Noico 80 mil mat, best bang for the buck you can buy. That's what I used. I just put in a 15+ hour work day I will get back to you tomorrow . Buy these too. 1 pack per 2 speakers.


https://www.amazon.com/gp/product/B076MM4DJV/ref=oh_aui_detailpage_o02_s00?ie=UTF8&psc=1


Don't forget the trim tabs I posted about. You will break some I bet. Get a bag of 20.







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Discussion Starter #9 (Edited)
Just received my replacement speakers from Crutchfieldcanada. Wow were they fast! Ordered Mon afternoon, arrived Tues afternoon.
Was considering (its sitting in my Amazon cart) adding some Noico 80 mil mat to the inner doors and trunk/ spare area while undertaking the swap.

I'm a little nervous about removing the panels and liner, and wondering if all the effort would provide a noticeable improvement.
Not expecting a drastic or comparable to thousands of $ install improvement. All in I'm at $150 for 4 speakers, potentially $100 for the mat, spare clips & such.
Just a slight improvement to road noise and music quality.

If I do, I'll be shooting a little video on removing the panels & swapping the speakers. If at the least, as evidence for if I screw something up.
Planning on attacking this weekend, so I'll post up results once completed. Taking all luck and suggestions ya'll are willing to share.

I read your post again and I saw $100 for the mat. What are going to put in 4 boxes? I used one box ($20) and one tube of Dyomat I bought from Crutchfield.


https://www.amazon.com/gp/product/B01KZ5X7KO/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1




As for removing the liner.....I did not pull it fully off, I just pulled back what I need to to get into the door. You would have a hot mess if you fully pulled it with the sticky black tar strips sticking to the blob of thin sheet plastic. Remember you don't have to fully coat the inner and outer door. You want a good sized sheet behind the speaker but you can cut 1x6, 2x6, 3x6, 6x6 ect and blotch install them all over the inside and outer door panel. Don't forget to get spots on the whole door even the side crash beam. I used 4x6 inch pieces all the way along it with 4 inch non-mat areas along it. I chose to full line the area on the outer skin below the lower door speaker and in front of it to reduce the tire and road noise. I use alcohol to clean the surface before I stuck it on. You will also need to get a couple of spots behind the area where you have no access ports, in the outer mid door area. Here you are just stopping vibration, and can leave 6-8 inches of open metal showing, but should have the mat within 6-8 inches of each piece installed. this can be even a 2x2 inch piece.


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Discussion Starter #10
You also want mat under and over your ring extension. Cut a square that goes 2 inches past the speaker opening, put it on install the ring, add some more mat on top to seal the ring down tight. You can use another square sheet or piece some strips together too, but you want no overlapping on the under and over material so your speaker has a flat surface to mount to.
 

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I read your post again and I saw $100 for the mat. What are going to put in 4 boxes? I used one box ($20) and one tube of Dyomat I bought from Crutchfield.
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I had three pkg options of 18, 36 or 72 sq' feet so I measured the door area real quick, also wanting to do under the spare tire & rear hatch area.
Better to have more than enough than fall short.

Really appreciate all your direction. I had to read it 3-4x to grasp what you are describing. I'll be sure not to fully remove the liner.

I've watched a few videos from other (model) installers and plan to take my time.
Still waiting for the brackets to arrive. Planning on next Sat or Sun (11th/12th) to tackle this project.
I didn't get as high end a speaker as you. Picked up Rockford Fosgate 2way for the front & 3 way for the rears.

I may try and capture some video snipets, to record road noise and stereo sound (with tone set to 0) before & after.
As well, the kit list, panel removal, part swap, sound mat application & re-assembly. It'll be a first - potentially good amateur "what not to do"?:smile_big:
 

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Discussion Starter #12
Yea, I was going to do the spare wheel tub, but thought the sound was deadened by the thick rear floor and foam insert. I will add some Roxul toward the upper front of spare well, I just don't want to add more weight and Roxul is a better sound deadening material the dynomat. I am looking forward to your sound tests.
 

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Well, as I was delayed on the speaker install, I went ahead with sound matt in the trunk area.
I took out the factory tonneau and foam insert. The tonneau hits me in the forehead and I find better storage for stuff without the foam tray.
Removed the spare and went to work. 2 sheets of the matting fit just about perfect.
Easy to cut and mold to the area. The "cheap" brayer roller I bought broke part way through so I flattened it as best I could.
In the end, everything fits back the way it should. Oh, and the dollar store, rubber shelf liner stops pelican cases from sliding. Best $2 mod yet!

Heading out for a test drive to see if there's any difference. I'll update with my findings.
Bummed the speaker swap didn't pan out
 

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Well, as I was delayed on the speaker install, I went ahead with sound matt in the trunk area.
I took out the factory tonneau and foam insert. The tonneau hits me in the forehead and I find better storage for stuff without the foam tray.
Removed the spare and went to work. 2 sheets of the matting fit just about perfect.
Easy to cut and mold to the area. The "cheap" brayer roller I bought broke part way through so I flattened it as best I could.
In the end, everything fits back the way it should. Oh, and the dollar store, rubber shelf liner stops pelican cases from sliding. Best $2 mod yet!

Heading out for a test drive to see if there's any difference. I'll update with my findings.
Bummed the speaker swap didn't pan out
Remember when installing sound deadening to not go over board and to clean it first with rubbing alcohol.
 

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Yes, I did clean it out thoroughly with rubbing alcohol.
Only put down 1 full layer - I agree, more is not always better.
 

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True but for future reference leave open spots not needing to cover almost 100%, I know since I did mine the loss of road noise maybe went down a few decibels and this is also doing the fender wells under the side panels with light application to over kill it and under the rear seat. The rest of the road noise transfers through each door as I can tell even more now and through each piece of glass. Other bad area is the tires that come on the Limited at being a High Performance which translates into higher road noise due to their design.
Once you get back into the doors adding a few pieces spread apart from one another and behind the speaker will help.
 

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After a short little road test, I can notice a difference.
Gone is the tiny, hollow road noise and some of the engine rev. Some, not all. Noticeable mostly due to the muffler being just underneath.
All in all, for the 2 sheets of mat and about an hour of effort, it does add to the (already) enjoyable driving.

If I dive back into the door panels, I'll add a few 6" strips.
I also agree about the wheel well areas making a difference. I'll have to figure out how to get in there, as well if I should feel adventurous about removing the seats.
 

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Discussion Starter #18
I thought I would bring this forward for new Kona owners who want to quiet down their car a bit more then Hyundai chose to. It helps!!
 

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After a short little road test, I can notice a difference.
Gone is the tiny, hollow road noise and some of the engine rev. Some, not all. Noticeable mostly due to the muffler being just underneath.
All in all, for the 2 sheets of mat and about an hour of effort, it does add to the (already) enjoyable driving.

If I dive back into the door panels, I'll add a few 6" strips.
I also agree about the wheel well areas making a difference. I'll have to figure out how to get in there, as well if I should feel adventurous about removing the seats.
I'm going to do this mod this week .....
 

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I ...,did a quick measure of spare tire trunk area , and 10 sq.ft should be good . So if that is all you need to sound deaden for now ..you can get 10 sq. ft. of Noico sound deadener at amazon for $19.99 free ship if you have Prime or if you order something else for $25 total ..than ships free ..Well I did not need anything else ..so on amazon it said the company supplier was STPATLANTIC ..I typed that in on computer and went straight to their site . they directed me to either Amazon or E-bay ..When I clicked E-bay ..it showed Noico 10 sq. ft. for $19.99 and free shipping ..So ,I got lucky and ordered it Tues . and says guaranteed delivery by Sat . Good to go ....PS... the Noico is 80ml thick so it"s not the cheap stuff .
 
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