I have a 2009 Edge. MAke sure your Sync is software updated.
http://www.syncmyride.com/Own/Modules/FaqManagement/FaqList.aspx?tagId=101
Delete your old phone from the Bluetooth device list. Re pair your new phone.
When you plug in your phone with the USB, be sure to select USB from the media list. Next look at the iPhone and select iPod. On the screen, you will see the only option available is a speaker icon. When you Touch it, a source selection will appear, select USB. With that selected,you can control the iPhone through Sync. IPhone cannot be controlled through Bluetooth but will play by Bluetooth through the sound system. Make sure bluuetooth is selected as a media source in Sync, and Bluetooth is selected on the iPhone through the iPod function. Set the iPhone volume,using the iPhone volume control to at least 50%. the car audio volume can be adjusted with the car volume control. If the iPhone volume is too low, the car will not compensate for it.