WARNING: This page is about a different car, the 2014 Hyundai Elantra GT and 2013 Hyundai Elantra GT. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Identifying Hands Free System Components
Courtesy of HYUNDAI MOTOR AMERICA
* There is no hands free jack. This system supports Bluetooth® (wireless system).