I just recently put in my first system into my car(been helping buddies do theirs forever). I got a DC LVL 4 12" and an Audiopipe 1500 amp. I have a scion tc so its in an hatch. It bangs as hard as my buddies XL( his is in the trunk and the back seat doesnt fold ) and its cheaper. For wires, amp, sub, and custom box(built a tuned one with my buddy) i spent $600. That one sub is louder than my buds 2 12' alpine type-r and they are $200 a piece versus 275 for lvl 4 DC.