i have some 15"s in a singlcab its a dodge ram 02 i made a box for them it fits grate and every thing but i still think i can do some more to help the sound cuz im still not geting the bass i want and i now my subs can give it. i even went and got a custom box that they sell for my kind of truck. a friend told me i should try putting some kind of fome pading thet boxs sometimes come with he says it helps with the sound can anyone help.