I havent decided on anything other than subwoofer. I have completely gutted the z audio wise and am open to any and all suggestions on amps/components/etc. I currently have 1 Sundown SA-12 D4 (would like to trade it plus cash for 2 Sundown SA-8s if anyone is interested) The sub is brand new. Also if you suggest something kindly show me where I could get it (leave a link) would like 4 6-1/2s,Tweets, Sub Amp, Components Amp. Am thinking about running Powerbass 3 inch bullet tweets fiberglassed into dashpad. If ya have a better/cheaper idea on tweets let me know. I really appreciate any and every comment. As for box build I am wanting to do a single 12 enclosure in the hatch would like to do aero port if anyone has any design suggestions that would be helpful also. Again I really appreciate any help I could get I am fairly new to all of the aero/spl setups (can build/tune slot ports but want to do something different).