I'm Talking about a 1990 Honda CRX i need some luggage room so i'm not taking up my whole trunk. i was thinking like 2 subs 12inch each MAx i think thats all i really need since my car is so small and its pretty much all open no walls or any thing. (the truck is right behind me). In the head unit i want it to look cool. i want it to be able to hook my IPod or w/e directly to it so i guess an AUX Channel. i don't need a Screen Unless its pretty cheap i don't think i really need it. My Speakers Will need to be able to fit the space that they are in now. i dont' know the dimentions i'll post them later but it looked pretty big. encloser i guess u mean a sub box? not really sure what else to could be. i'm gunna have my boxes made for me to make it sounds the best. i'm gunna amp my speakers and my subs on to different amps. i jsut dont' know what would be the best for my money