Ok guys, here is what I have and what i have done, and I still have all kinds of rattle.....

arc audio Kar 1000.2T driving the 12" L7 in a ported box. I have used a whole roll of brown bread in the trunk and it still needs a bit more, but the trunk lid is done and so is the whole bottom of the trunk and, man the spoiler bounces like crazy still and the SPL rattles the rear bumper and shakes the licence plate. if I lift the lid it is of course a different story, as the SPL is not there anymore, so the bumper doesn't shake any more...guys I am lost for what I should do and try..I don't want to get another roll in there just to find out that everything will still rattle...
P.s. I drive a 2001 honda prelude.

Funnel the sound into the car, don;t trap it all in the trunk.

if ur licence plate is ratteling, take sum foam about a 1/2 think and glue it to the bottom of the plate in the corners... i used a semi hard sponge and used silicone to attach it and solved one prob and made another [img]smile.gif[/img]

Or a little weather stripping would work well also [img]smile.gif[/img]

Or even some more of the BrownBread should work too.

go buy 1/2 inch foam padding and put some behind everything. sure lots of deadliner will solve it but you can get the same effect on things out side the car. i would stick to using the brown bread in inside the car and make do with improvisation outside. good luck

[ July 17, 2003, 11:38 PM: Message edited by: spl builders wife ]

how do I funnel it into the car? And for all the other post below, thanks for the replies, but the plate rattling is the least of the problems..my trunk rattle like there is NO brown bread in there..meaning before I put it in and after are very, very simular...is that right?

It will take reconstruction of your existing box or a whole new box. Think along the lines of a bandpass where the vents go through the speaker holes into the car.

No sound in the trunk = no rattles.

You could also build a baffle on the front of the box to force all the sound through the back seat opening. Look at the first page here: http://www.sounddomain.com/id/sux2bu99 to see a fancy one.