I have a custom sub box for sale, local pickup in Miami, or I can deliver in the Dade, Broward, Homestead area. I've got $450 into it, so that's what I'm looking to get. It spans the back wall of the truck, and fits 2 10" subs (1 behind each seat), and an amp rack in the center. It was designed so the seat is only 1 click up from all the way back. And it was intended to house 2 JL audio 10w3 speakers. Other subs with the same airspace/dimension requirements will fit. It's a sealed box, no port holes. It brand new, black carpeted, box only, no subs or amp. I had it built, but sold the sy before I could install it. I have pictures available. Shipping would be insane for this item so local pickup is ideal...but if you want to pay it, I'll send it. I spent $450 on it, I'd like to get back what I put into it.