Ok, the amp does have a Microphone/Accessory input on it. I see it is
a 9 pin connector (3 rows of 3). On the top row it has 3 connetions
for input, nothing for the middle row, and 2 on the bottom row side by
side going from left to right with nothing for the third hole. Does
anyone here have the schematics for the microphone kit that would have
been used? What other accessories would have used this connection?