Alpha Damp + Luxury Liner?

[truzoom]

Hi all, new here.

I'm thinking of adding sound dampening to my single cab F150 to address some rattling and weak spots in the audio. I've recently started listening to Dubstep and never before have I wanted a hard hitting mobile audio system. At the same time, I'd like to make the cab interior as quiet as possible since I'll be spending time taking off the panels and such. (also because these trucks aren't built to be luxury quiet)

From the research I've done, it looks like my best bet is:

For audio: Alpha Damp @ minimum 25% coverage per panel. For my application, this would be the doors, back wall, and maybe the floor.

For external noise reduction: Luxury Liner Pro. This would apply on top of the Alpha Damp.

A few question I have:

1. Is the Luxury Liner intended to be applied also @ minimum 25% coverage? The reason I'm confused here is that since I'll only have minimum coverage with Alpha Damp, I assume I can/should only apply Luxury Liner on top of a vibration damper. Or, is Luxury Liner something you're supposed to apply all over?

2. What is the likelihood that applying either product (or a combo) will interfere with getting panels properly back in place?

3. Does anyone know if speaker grilles can contribute to rattling or sound problems? The door panels on my F150 have integral speaker grilles and I wonder if they are a weakpoint where the vibration from the speaker can cause the plastic door panel to flex. You can see in the sample pic below (not mine) that this fellow actually cut around his speaker (not the best job, IMHO).

[TeamHT]

1. Full coverage

2. Not a problem

3. Anything that can vibrate is contributing to the noise. If you cut the factory door panel to fit the polk speaker grill, just cut a little larger so that it's not vibrating against the grill.

[emperorjj1]

llp might interfere with panels going back on... just sorta depends. BUT you can defiantly make it work with some thinking and trail/error

as far as the panels go. dont ever ever cut that grill. regardless of what happens that thing was built like shit and if u cut it like that it will be worse. believe me i know bc ive done it on that exact same truck you can add a dampening on the plastic panel if u want not much can/should be done there really thou... look into overkill to prevent the plastic on metal rattle

[Second Skin Rep Jon]

TeamHT and emperorjj1 pretty much summed it up.

To reiterate.

1. Full coverage with as few gaps as possible. LLP is a barrier, the more coverage, the better.

2. Depends on the vehicle and how handy you are. Pop a panel off and see roughly how much space you have. If it looks kind of tight, opt for some OverKill and regular Luxury Liner and make yourself thinner version of Luxury Liner Pro. Luxury Liner Pro is about 3/8" thick, OverKill with Luxury Liner would be about 1/4" thick.

3. Personally I would try my best to use the factory grill. If you decide to go with another make/model/brand of speaker, each grille is different and getting it to fit over the cutout in your OEM door panel may be an issue.

[emperorjj1]

ya those bars have absolutely no structural support at all...