I have the same problem (hard to hear) mine also hangs up on people mid conversation... yeah real nice 
  
Thats not my only problem thos, inface thats the smallest....I have had my ford into the Okotoks Ford dealership 6  times in two months, we dont have a lemon law here so I have taken the  complaint where i can. The car was also into another dealership 8  times... Ford Corp Canada does not seem to really care and only reads  from their script. I had the nav system replaced and it came back full  of addresses to places I have never been (8 hr drive away)  and Okotoks  Ford dented my center console replacing the nav so they replaced  that, its been in 3 times for the window regulator, and then they  scratched my handles replacing the window regulator. Its been in to  replace a speaker, scuff gaurd twice, sunroof, usb port, and receiver.  
  
Good luck!!