My iPhone 5S will not work properly with the voice through in my 2010 Cadillac STS4 as it did before the new IOS. Now the volume drops to nothing after just a few seconds. It will begin each call or each GPS direction on my Garmin app. The only time when I hear all of the conversation is when I either receive a call or initiate a call utilizing my contacts. If I utilize Siri to begin a call, it states that the call has ended.
Before the latest IOS, it worked great! This is VERY frustrating as I am a teacher and I need to be able to speak handsfree in my vehicle. Please help me with ideas of how to fix this. I have already performed a restore.
Thanks,
Steve Knote
