Hey guys, new to the forum and just picked up an 01 ST. Looking to get a sub installed. pretty sure I'm going under the seat. Just curious what everyone things of the cheap ebay boxes. From what I see, you can't use the seat because the weight will put the seat bottom into the speaker. Thinking about building my own down firing one to avoid the seat/weight issue. And with todays slim subs i figure theres got to be some good options. Any insight? reviews? anything.