When using Bluetooth on my 599 I can clearly hear the other party but they have a difficult time hearing me. There is an old thread talking about the 612 Bluetooth issues and it sounds like the mic may need replaced to make it usable. I looked at Ricambi's diagrams but I don't see the mic listed. My questions: Where is the mic located? Is it available separately? I don't care if it comes from Ferrari or another source. Anyone else found this to resolve this issue? Thanks for the help guys.