Adding an external mic -- wiring diagrem?

youyeetoo X1 SBC is base on the Intel 11th Gen CPU N5105,Quad-Core 4 Thread 10nm TDP is 10W,

I want to attach an external Mic to the SBC X1, I understand we have to update the BIOS to use the external connector, my question deals with the wireing to hook up an external mikes.

All information I have obtained re: on the web – with respect to an Adrino and other SBC’s the requirement is three wires: voltage, Gnd, and the analog auidio signal.

On the X1 there is a 2 - wire connetor noting + and - for a external mic hook up how would one use this does anyone have a sample or wiring diagram they can pass along?

Ultimately i would like to use a wireless mic sending to a receiver that would connect to this entry point? Or should I completely bypass this and use a USB based mic?

Any help would be greatly appreciated.

Regards
Charles