Denon Mic help needed

[mattcullum]

Guys I have just agreed to buy a Denon 1706 av amp as a temp replacement
while I'm saving for my cellar project.

I'ld like to use the autosetup on it when it arrives however the seller has
lost the mic.

Is it possible to get a cheap replacement and will any kind of mic do?

Thanks

Apologies if this is a dumb question.

Matthew