harmon karden stereo

I just bought a 1996 328I. I think the stereo system is incredible but I can't find any information on it. It sounds like it has a subwoofer, but I don't see it. Does anybody know the configuration of this Harmon Karden system in a 96 328I?

This link should help it is for a Z3 the front speakers are the same has a E36 but the rear speakers on a E36 have 2, 6x9 subs w/ 2, 2inch speakers for vocals.

http://www.mz3.net/articles/070.html

This link should help it is for a Z3 the front speakers are the same has a E36 but the rear speakers on a E36 have 2, 6x9 subs w/ 2, 2inch speakers for vocals.

http://www.mz3.net/articles/070.html

Hey thanks, that helped alot. I appreciate your responding