SO....I'm going to build a sealed box for my sub. The ported box was ridiculously big and wouldn't fit under the rear deck. So long story short I'm going to build this 'tiny' box. My question is how to mount it in the trunk. I want it up against the seat but have you guys made bracket and bolted it to the seats or to the floor or what do you suggest? I dont really want to drill holes in my trunk either...