I am a new driver wanting to get some subs in my car to show off at school. I have a 2012 Scion tC and I was needing to know first of all a sick set up that I could get for under $700. I'd like to have dual 12 Kicker L3s, but I don't know what all I'd need for it. Also would I need to upgrade anything, get a new battery, ect.? Please let me know.