His old car was the Saturn DD Build I did a while back......motor blew....so he got a Mazda 3.
Great little car, accepted everything without too much trouble and it sounded great.
Kenwood X996 Headunit with Bluetooth, USB, Aux input and HD Radio
DD Audio 5.25" High End Components Up Front
DD Audio 5.25" Components in the Rear
DD Audio 4 channel amp to push those
DD Audio CM600 Mono to push the two
DD Audio 12" 500 Series Subwoofers in a ported box
There wasn't any room to mount the amps out of the way without getting crazy custom, so I did a false floor and mounted the amps and box flush.
Turned out great and tuning is a breeze with this one.