headphone mic

I've got a pair of Turtle Beach EarForce Z11's that I've been using for a while on both my PC and Xbox. The cable started to fray a while ago so I taped it up. Fast forward to a few weeks ago and the mic output is very low but it is still picking up audio. The headphones themselves still work...

SO.. Here we go... I asked this question a few days ago and didnt seem to get an answer, which is fine... everyones busy i totally understand! sometimes it just doesnt happen! But im too the point now im fed up with my system. I had a friend housesitting while i was on vacation, and allowed...