Need help with 6-pin mic connector
 

I need a pinout for the microphone connector on my KDK FM-2033. It has the
same connector as the FM-2030, the FM-4033 and the FM-7033, as well as,
possibly, the FM-2016. It is a screw-on connector with 6 pins. There is one
pin in the center, with five others at various points surrounding it, and
there is a notch at the bottom. The microphone unit has the female
connector, the one on the radio is male.

Anybody got a similar connector with a pinout for it?
Thanks!

-Greg Courville