I have deployed a CS-KIT-K9 in my conference room. There is also a mixer in the conference room that is connected to multiple microphones. I want to send the sound from the AUX 6.35TRS output port of the mixer to the CS-KIT-K9. The AUX output of the mixer is a balanced mono XLR interface, while the two microphone interfaces on the CS-KIT-K9 host are both 4-pin interfaces. I need to know the signal wire sequence of the 4-pin interface in order to make the cable, or could you please suggest how I should make the connection?