Connect Antenna to GPS Module ET314AC
Read the datasheet!


  V_ANT_IN
  
  This pin is reserved an external DC power supply for active antenna.
  If using 2.85V active antenna, pin 19 has to be connected to pin 20.
  If the bias voltage of active isn’t 2.85V,you can input bias voltage of you need to this pin.


So just wire the antenna to the RF_IN pin and GND, and connect pin 19 to +3.3V (since your antenna is 3.3V not 2.85V).