Dittel Dynamic Mic wiring

Hello all, I have a dittel FSG-60M Radio in my glider. It has a mic plug
with a telex IR Electric headset. The headset is inconvenient and I got a
Dynamic Mic from Wings and wheels. The glider was hard wired with a
PTT and a separate speaker. I have removed the plug on the end of the
mic and I wish to hard wire the mic. A brown,white wire with a ground
are in the mic line. I do not have a wiring diagram for the mic. I looked
at the FSG-60M installation instructions was trying to figure out if an
amplifier is needed to run the new set up. W&W was not very helpful
and I could use some expertise as I thought it would be rather simple
to replace the mic. The radio is set up for a dynamic mic already. It is
inscribed on the outer case. I do not believe it was ever changed from
the previous owner. Anybody with experience with this set up? Thanks,
Doug