iPhone 5S audio not working with 2014 Buick Intellilink
I recently purchased a 2014 Buick Enclave with Intellilink. My iPhone 5S pairs with the system. My contacts are in the phone book, it plays music as an iPod through the system, etc. The only glitch is that when I make or receive a call from the Enclave, the audio is silent. When I make a call, I don't hear anything. When someone calls me, I can hear my phone ring through the system, but cannot hear the call after it's been answered. I have tried numerous fixes, but nothing works. Any other suggestions?
iPhone 5s, iOS 7.0.2