Recommendations for a car stereo set-up?

Kenwood head unit with CD, aux. input and USB jack for iPod, bluetooth ready for hands free phone and mounted in dash, Kenwood 700 watt amp, pair Kenwood 6x9 120 watt 4 ways mounted below package tray (they fit perfect), pair Kenwood 4x6 60 watt mounted in aftermarket kick panels, pair 3.5" Kickers mounted in original speaker location using a purpose built aftermarket speaker bracket, no subwoofer... yet.