Why isn't my new microphone working? I just got an Antlion Modmic microphone, along with a Rockit headphone/mic to TRRS splitter. I've got everything set up, but my late 2011 mbp 15" just won't recognize the microphone as an input. I should have under my audio inputs box in system preferences a thing saying "external microphone," but I don't. I also don't think this is a hardware problem, either, it works fine on an iPhone. 

Things I have tried:

-Plug the microphone in the Audio in Jack
----is not a powered mic input that my mic needs

-Tried plugging it in to the splitter first then in to the computer- still nothing

Is there something I'm missing?
From http://www.modmic.com/pages/faq:


  For Macs you'll need a power source like an iMic to use the line-in, or an adapter like this to use the headset jack, or and adapter like this to use a USB port.


Unfortunately, I do not have the reputation to link what was referenced in the FAQ, you'll have to visit the FAQ yourself.