budget: i can get the 3xl's for around $100-$140 each. i am willing to spend up to $200 for an amp. idk for a box.
http://www.powerbassusa.com/products/subwoofers/3xl_subwoofers.html
electrical: ???
amp: none. open to suggestions.
car: 2000 Mercury Cougar
area: i've got a big trunk...