soundproofing

So I'm about to start buying materials for deadening my delta. My biggest concern is trunk rattle. I'm gonna do 200ml on the big panels and the entire trunk. What else can I do to dampen the trunk lid? I'll be running 2 sql-15's ib on 2k so I'm pretty sure there's gonna be some rattling when the...

how important is it to do some deadening while they have my truck apart doing the install. It’s a 2021 Chevy crew cab. Under the back seat enclosure with 2 jl subs. And an amp rack on the back wall. Would it be beneficial to do some deadening on the floor and back wall. When I have them do the...

Hey, I am looking for an entire new car with the only purpose of getting me around in as little noise as possible. I have a 20 year old civic and I would rather start with something quieter before I soundproof it. There are many models that have things like ANC or dual pane windows. And then...