Trying to connect my 4s to Ford SYNC (2012 vehicle) and Sync finds the phone's bluetooth and then says, "Please say your pin number after your pin is confirmed back, and say ok." It seems I am suppose to have a pin display on my phone that I say back to Sync, but my phone isn't displaying any pin at all. Not in the bluetooth area or main screen...nowhere. The phone's Devices just keep searching...always...in the car...away from it. Any ideas? Thanks!