NTR Audio Help

Hey guys, I just recently purchased a NEW 3DS with NTR set up inside already. Now, they have given me the software and the video footage isn't so bad compared to the capture card, but I have one problem. Audio. Now, I read the tutorial that you are supposed to take one end of the audio aux cable and place it in the mic and the other to the 3DS.

I also have one Blue Yeti mic and I want to use that to record my voice for the commentary.

Is there some adapter of some kind so I can both or...

NTR Audio Help