I'm getting ready to install the Kenwood Ksc-sw11 powered sub. I was thinking of putting it under the drivers seat or in the trunk. I have the Tuffy trunk box that is locked when the tailgate is locked. Would this area be worse than under the drivers seat? If I do under the drivers seat I may have to lay it on top of a pad as I don't have carpet. But would the trunk sound better since it is now enclosed or just muffled?