Sound deadening suggestions/suggestions on box problem

[cheeto 10+ year member]

I got my SD2.515 installed a little while ago and I love it, that thing wangs for 600w. My only problem now is I've officially gone crazy with all the little rattles I get from it. The panel that goes over my jack rattles a little bit, I had to ziptie the third row seat seatbelts down, etc. My question is this... Will I be able to just sound deaden the part over the head liner where it rattles the worst? What kind should I get for this? I figure if I'm just gonna do that spot over the headliner I'll just go with Damplifier.

Oh and my other problem - when I turn it up loud, the box vibrates to the back of my car. ****ing annoys me. Anyway, what's the best solution for that other than screwing it down? I was thinking of making a little L shaped thingy to use like a hook and put it between the gap of the second and third row seats (id get pics but my camera is a dickbutt). My only problem is I don't know how much more annoying *** noise that would give me. Any suggestions here too?

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[loudcartunez 10+ year member]

is it ur box that is moving when the bass hits? if so the box isnt built that well i would go and caulk the box might help?? and if the box slides when u hit the brakes ect... u can either get some 2sided velcro if the box isnt that heavy or u could screw some 2x4s or whateva size to the body and place ur box ontop of that and screw it to the 2x4s

 

[cheeto 10+ year member]

is it ur box that is moving when the bass hits? if so the box isnt built that well i would go and caulk the box might help?? and if the box slides when u hit the brakes ect... u can either get some 2sided velcro if the box isnt that heavy or u could screw some 2x4s or whateva size to the body and place ur box ontop of that and screw it to the 2x4s

I caulked the whole thing with silicone, made sure of that. It just vibrates the whole box when I drive and the bass is up. I don't wanna drill anything into the car, wanna keep it completley stock (aside from the wires and head unit lol)