I tried USB Audio integration to ubitx.
Inbon,cheap USB Audio(about $1) and Arduino to USB Passpower HUB.
It's very good work for WSJT-X and CEC Firmware 1.02 ONLY USB 1 connector.
USB MIc connects Volume Yellow line(It's pre AF Amp,about Line Lebel).
Mic Line coupling 4.7μF capasitor,If Mic jack connect then Mic use else USB Audio sound in.