As most car manufacturers require the smartphone to "push" contacts in order to transfer them to the vehicle phonebook, the iPhone lacks this ability. My 2011 Infiniti G37xS can read my iPhone 4S's contacts but when wanting to transfer them to its own system nothing happens as it is waiting for the iPhone to "push" them.
Is there a Cydia Bluetooth app or profile that will do this?
Is there a Cydia Bluetooth app or profile that will do this?