I got 2 12" subs in my camaro RS..they are in a custom built box that goes where the spare tire usually does in the trunk...problem is...when i put the volume up high...the subs vibrations make the metal in the trunk , licence plate,etc make noises (making the music sound really bad)
so i can never really enjoy the system...my friend told me something about getting my trunk reinforced...i had never heard of that...can anyone explain it to me and about how much it would cost??

Thanks