IIRC in the AUDM has only 4 speakers (2 in the front; one on each door) and 2 in the rear behind the back seat on the shelf. All are 6". Not too sure on the specs.

I was originally going to put in some high quality low power speakers but after talking to a few people realised that it probably wouldn't offer much improvement, ended up going with the amp/sub, and then later on adding splits.