on a Beige G3 AIO the monitor is connected to the personality card, the internal Mic is connected to the personality card (which dont work in OS X, but if you plug a external Mic to the Mic jack on the back the internal Mic will work in OS X but not the Mic you plugged in).
the front board with volume button is connected to the personality card does not work in OS X, the 2 front earphone jacks also connected to the personality card do output sound in OS X but do not shut off the internal speakers when earphones are connected.
Video RCA or S-vid in on the wings card does not work in OS X, the video out is said to work (on non AIO systems) if you have no monitor connected and have a TV connected to the S-vid out or the RCA out before power up.
the RCA sound out does work in OS X, not sure about the RCA sound in.
i know cause i have a Beige G3 AIO that ran jaguar for a wile its in my sig. but i installed tiger on it.