You want tips? ok.
First, get all that stupid shit out of the car.
Second, go find some nice 4x6's for the doors and 6x9's for the rear deck.
Third go find a nice sub and we can walk you through building a perfect box for it.
Fourth, We will recomend a nice amp for everything.
Fifth, go find an aftermarket headunit.
Once you have all that shit, go get the rca's and speakerwire and power/ground/remote/fuses blocks.
I would recomend that you take the time to put sound deadner in the doors and rear deck as you run all the wires.
You should be able to achive excellent surround sound from car audio equipment...
Get rid of all that computer shit.