On the Euro spec cars, with the Nokia speaker option, the rear speakers are two. One "mid range" driver (5.25) and a tweet. I donīt know how to post pics, but believe me when I tell you there is a tweet aiming from the smaller hole in the rear. Option code for the Nokia system is #676 (says 10 speakers, but I can only count 8, with an amp at 10x20). The car has stock speakers and ?? amp being driven by an Alpine CDA 7840 with a 6 disc changer (Alpine CHA S614). This Nokia system leaves A LOT to be desired. My 3 series has the Harman Kardon and is worlds better than this.