In my EG VTi Sedan ive got:
- 6.5" splits in the doors - easy fit witha mdf spacer - AMPED
- old poineer cd h/u with 1 pre-out
- 4x100w reasponse AMP
- 12" venom sub in 69L box in the boot - AMPED
- 4GA power/12-16gu speaker cable used.

The system is perfect for what i wanted, and only spent a bit over what u want to do. Grab a reaspone AMP (easily best bang for buck) to power ur system, a cheap 12" sub for fill and a nice set (atleast $200) of 6.5" splits in the doors. U'll be set!