Hi, I am completely clueless when it comes to car audio (hence why im posting here). I just bought a Rockford Fosgate p3d410 dual-coil 10" subwoofer. I only bought it because it seemed like a good deal at bestbuy. So now I want to put it in my car but I have no clue what kind of amp/wiring to get. The thing is I want to spend as little money as possible, but i also don't want it to sound like crap. So my question is what is the cheapest/best amp I can get that would work with this sub?

Also I'm thinking of building my own sub box, is this a good idea? I have a 2001 nissan xterra and I dont want to take up too much trunk space with a normal box. Is there somewhere I can buy a custom shaped box for my car? Thank you so much for any help!