Watt up ya!!!
Wondering what type of speaker box will work best for my 98 Sedan? I have 2 10" Orion which I love the sound they put out problem is I had them in my basement and someone left a window open downthere and water got inside and of course the box got wet and now is now good, so I pulled them out of the box and threw the box out. . I had that box in my 99 M3 and it was great with a Rockford 600.. Let me know what would work best. Any clue on the speaker size for the rear deck? Would 6x9's fit? Still have to get an Amp not sure what imma run yet but wanna see what type of box to buy or build...... still trying to figure out how I went from an M3 to a civic???lolo still love my EX though!!!!!

pIECe yA

 

6X9s will fit in the 6X9 holes in the the rear deck.

If it were me I would put them in a sealed box firing backwards. Pretty much the same as your bmw because if you liked that sound you will like it even more in the civic becuase you dont have all the sound deading crap between the trunk and cabin.