Hello. Ok I've been trying to cheaply hook up my external mic (Siberia v2) and my attempts thus far have failed. The first one, a cheap chinese usb audio card, does not work not even on windows (line out is ok, line in/mic does not on either os) -- probably a dud Second one, a (slightly expensive and hard to find) mic / speaker TRS outputs -> TRRS. This should have worked because it supports TRRS (iphone headset), but it did not !? When plugged in sound works fine but OS X does not see an external mic (headset is unmuted etc) only the internal one - http://puu.sh/W2B7 Do not have a iphone headset that has a working mic to test the port but side-by-side of the jack compared to an iphone headset jack was identical. Perhaps someone has a solution to #2 but I've looked high and low. Barring that are there any cheap audio cards that WORK? I'm not looking for something with a thousand features, I just want to use my headset without spending upwards of $100... Thanks!