Interior Cabin Noise Question

I thought I had an idea of what I was doing and ripped apart my interior and ordered 145 sq ft of Noico and some tape to quiet the interior of my DCLB. Now, looking at some of the other threads I don't know if I have everything I need. My main goal is to quiet the interior cabin. I am seeing mats, foam and other things guys are using and I'm not sure if this is overkill for me. I screwed myself and bought the JBL sound system, so until there's a solution to upgrade that system without completely gutting everything I'm stuck with it, as I'm not a fan of how the aftermarket head units stick out from the dash. Is there anything else I need for my application other than the Noico and tape at this time? Any help would be greatly appreciated. Thnx

 

Any amount of sound treatment will be better than no sound treatment.

You have your basic material like the noico you got. Everybody makes stuff similar to that. Kindof a rubbery mat made to stop sheet metal from resonating and vibrating. Also just adds more material to the door for outside noise to travel through.

Then you get to the foam mats and stuff that add even more material for sound to get through. This is typically more of a very dense foam, usually intended to capture more outside noise.
Then there are some companies like SoundSkins that merge the two styles together in a single sheet to cut down on total thickness and make the install easier and faster.

Ultimately, do as much as you're willing to spend the time and money on. Nobody ever complained about "too much" sound treatment.
The noico you got will increase sound quality of your stereo and decrease some outside noise and road noise. If you want even less external/road noise, grab some of the foam (like the hushmat silencer megabond or similar) and slap a big sheet over everything (while still making all wiring and bolts/nuts accessible for repairs and maintenance)

 

So then the MLV would just add another layer and essentially be the icing on the cake, almost overkill? The Noico and a foam would be essentially the cake and will have eliminated a substantial amount of noise, correct? Thnx

 

Any combination will do great! All comes down to time and money so go as crazy as you want!

 

MLV is a barrier layer and when applied as close as possible to 100% coverage, significantly reduces noise ingress from the outside of the vehicle. Foam decouples things to prevent rattling and can offer thermal insulation and can be used to fill voids. CLD alters resonant frequency and amplitude of panels prone to problem resonance...like sheet metal.