Excessive Rattling

[WickedSurf]

over the past couple of months my cars is starting to rattle quite a bit, to try and prevent it ive turned my frequency down from 125 to 50 and lowered the bass, dynomatting is expensive and im not sure if it would prevent what sounds like screws rattling in my bumper and taillights...has anyone else had this problem? and what else can i do to prevent freakin rattling

[geolemon]

Tighten, tighten, tighten.
It's really all you can do.

Some things make noise because they are actually vibrating... those are the buzzes that damping material can help.

Some things make noise because there are two surfaces touching each other, and when one vibrates, it rattles against the other surface.
Adjusting the objects so the surfaces don't touch, or putting something like felt between them where possible can help in those cases.

Some things make noise because they are loose, and can shake around. Tighten them up.

Sometimes you can't see things too well.. it might make sense to take a weekend, pull your door panels off, pull all your interior panels off, pull your rear deck off... and simply look around.
You might be surprised how many things you can find that are potential rattles, that are relatively easy to contend with, without any dynamat... just common sense.

Some common ones are your license plate... first off, if you can secure it with four screws rather than two, do that. But if not, a thin piece of carpet or dynamat behind it can help quite a bit.
Taillights are another common one... either tighten them, or remove them and see if you can install anything to help cradle them, to better hold them in place, if the screws alone aren't effective.
Spoilers are another one. And the solution all depends on what type of spoiler it is... sometimes a pad of thin neoprene between the trunk lid and the spoiler base is all it takes to effectively decouple it.
Trunk lids suffer too, sometimes damping material is the answer... sometimes a trunklid alignment is more the answer.. or both.

At any rate, there's a ton of buzzes you can fix armed with nothing but a screwdriver and wrench set, common sense, and ingenuity.
Good luck!

[Civic96]

Everyone faces the same problem as you. My car didnt rattle too bad at first but with each passing weak new things would start to come loose and start rattling. I took a good chunk of bumper rattling out by linning the trunk with weather stripping, put a strip behind the license plate, and tied these two metals rods that allow the back seat to open to the trunk itself. Everything was going well and then my rear deck started rattling like mad. I fixed the problem but not before my mirror started shaking so bad that it sounded like bees were in my car. I attempted to fix that but I couldnt completely do the job. Finally my doors started rattling and I decided to call it quits.

That car is gone now
I have a new one to rattle apart now