What size are the rear speakers?

Hi,

I got a 180Q non Bose.

K so i got front JBLs, 10" pioneer with sony deck and Amp.

I want to get JBLs for the back speakers but i need to find out from those who have already replaced the rear speakers as to what size they are? Thnaks a million in advance, i have spent 45 mins on google with no luckm anything at this point is apreciated

PS. just installed the BAMM from Modshack with the FPR, realyl easy install after 80kms it kicked in. i didnt beleive it would be noticable but in fact the bottom end is quite beefier plus it was a 15 minute install with beer breaks in between. But holy does the car run rich for the first 60 km... i could smell that at the stop lights, i think i got high :s lol