specs for 2002 Harmon Kardon stereo

Hello - does anyone know of a source for a detailed description
and specs (like you'd find from the manufacturer if you bought
the stereo retail) for the HK stereo in the 2002 325i?

Thanks
-Bill

p.s. one thing that's interesting is that there seems to be no mention
of CAR AUDIO on the Harmon Kardon site (or anywhere else).

Hmmm ...