This is correct for the EX 8-speaker set-up, that the rear tweeters are built into the rear speakers. (Similar set-up is used for the mid-level Civic and discussed in their forums.) The LX with 6-speakers loses these two rear tweeters but 'looks' the same because it's all housed in the same rear speaker area.I think the rear tweeters are built into the deck and use the same speaker grills as the other two speakers.