First be sure to check that all bolts and connectors are tite.
Don't set your woofers backwards (face up, you know up in the air, etc). For better quality face your box at least 2-3 inches back from the outside edges and be sure it's adjusted to fit snug and tite.

1. You can use foam or rubber and use double sided sticky tape or just tape, stick a piece of rubber in place where the rattling is coming from.

2. Try dynamat, fatmat, brownbread, edead, or anything similar. This type of matting lines the trunk against the metal.

3. Get expanding spray foam. It great for any of the areas matting can't reach.

4. If your spoiler rattles try placing foam under it.


The best advice.... turn it down a few notches.

 

Can you explain yourself? Your threads have been kinda out of place and/or odd in some fashion. Like this thread???

 

Very odd. Could it have something to do with the ad in the signature?

 

Yeah I was thinking that as well. I removed the last thread because of it looks like it might just be a spammer....