Thread: trunck rattles from subs

how do i stop it? the cheapest way would be appreciated thanks

Cheap leftover carpet pieces..... That is the cheapest

Weld the trunck shut. Cheap and effective.

Build a wall to block the most of the vibrations from reaching the trunk lid. Total cost, maybe $15

where would i put the carpet? and cant build a wall someteims the subs need to come out

spray it up

Buy Design Engineering Sound Deadening Spray 050220 at Advance Auto Parts

^^ what.....? i just spray the inside of my trunk deck with that stuff and it wont rattle?

Stopping trunk lid rattle can be somewhat of a pain. Your best bet is going to be adding mass, which would by using a product such as Audio Technix Sound Deadener - Better than Dynamat - Home offers. Using great stuff in the gaps between the braces and trunk panel itself helps as well, but I haven't noticed a lot of room to do that in my car. In all honesty, it's going to rattle (edit: It's going to flex) on low notes, assuming you have a somewhat potent setup. Mine actually makes a strange squeaking sound on the lowest ones lol. Oh... tighten your spoiler bolts too. Get in the habit of checking those every other week or so. Helps a ton. It's fun when your whole back end moves as much as the trunk does

Originally Posted by Bluemagic

Hey you got a write up for the wall?
Looks nice and neat

Theres really no write up needed. I just made a stencil out of cardboard and trimmed the MDF to match. The main purpose behind it was to hide the subs. But it turned out to be quite a rattle blocker.

That wall you made. Your subs are still facing out? I was thinking of doing that but maybe facing my subs in and possibly adding a port hole. I have a non ported box for my 15's and I'm thinking of new ideas. Any help?

2 15's ported is not going to fit behind that wall... not in any proper airspace. In fact, you won't be fitting 2 ported 15s in a 97-03 trunk in proper airspace without building in the trunk.

i barley fit two ported 12's it takes up have the trunk

tried the 15s can't be done right enough to over power 2 12s in a proper box (2 15s 142.7db.. 2 12s 145.6db same power)

So what would you guys suggest I do? I have those two infinity 15s and a kenwood 12 that I had for a few weeks in the car. I'm all for building a custom box. Would one 15 in a custom ported box be my best bet?

make it curve with the 15's on the outside and the 12 in the middle

Originally Posted by dpzelenak

make it curve with the 15's on the outside and the 12 in the middle

that sir would sound like ass
just a single 15 custom ported box in the low 30s