find someone who works at best buy make friends with them and have them buy it for you, one of my roomates worked at circute city and got 70 percent off his system it was orriginally like 2000 and he got it for around 700
cause its a big car a 10 would be good for it, some good brands are alpine and lanzar for the subs
your going to need an amp too, bunch of good amps out but get one with a multichannel because then you can bridge it and make it more powerful, then if you want to add something on later it will be easy
my friend is trying to sell his two mtx subs and an amp. i think they are twelves and i know it is a rockford amp that is 150 watts per channel. he only wants two hundred for them. pm me for more info
this guy knows his stuff.
My buddy had one 12' alpine type R with an alpine amp and it just bumped! Amp makes all the difference. 1000 watt no-name amp probably won't be as powerful at a 250 watt alpine amp.