I have the audio technica adg1 and I want to use the mic on it while using the headphones. Well, If I use the 4pole connector on my Fiio there doesn't seem to be any input, and If I use the pig tail adapter and plug the mic part into my mobo I constantly hear a slight high pitched whine. Anybody know how to use the mic with the 4 pole connector on the fiio or how to get rid of that whine? My computer does seem to say that I can use the fiio as a mic input somehow