Problem with Vanilla Rootbox, minor

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http://forum.xda-developers.com – Just installed the latest Vanilla Rootbox rom on my Note 2 and after trying many different roms, this is BY FAR my favorite. However, as with all AOSP/AOKP/CM roms I've had the exact same issue, which to be honest is minor considering. To the point, I'm looking for a way to enable the second microphone for in call noise cancellation. When is use a TW rom my GF says that I sound great, but on any other form of rom she complains about hearing static when I'm driving, my AC running in the background ect.. It has to be dead quite for her to hear and understand me :/ Any fixes? Or is this just the (HowTos)