Cannot say for sure about the connector: could be JST-SH. If it has been lost you can directly solder wires on the GPS: these GPS are cheap (can be had for $15) and the price of a connector is high, so unless you can find the connector again, just ditch it.
If you look closely at the module (remove the RTFQ label if need be) and follow the traces there is normally some markings for GND TX RX and voltage. The other cables should be for the compass (not used for now). On the right of your photo (next to the connector), one can see partial letters.
Pay attention to the voltage, the mainport is 5v while some GPS are 3.4v (cannot see any indication on your GPS), if so you would have to add a voltage regulator as your spektrum satellite is already pumping current from the flight controller 3.4v rail.
Assuming the voltage issue is sorted out this is only a mater of connecting Gnd <-> Gnd , + <-> + , Tx <-> Rx, Rx <-> Rx.
From then on this GPS will either be uBlox or NMEA. Ublox is easy as dRonin has an autoconfigure option that does all the hard word. If the GPS is using NMEA protocol you would have to know the baudrate and specify this baudrate in dRonin (or try all baudrates one by one...).
More details here : https://github.com/d-ronin/dRonin/wiki/OnlineHelp:-GPS
Hope this helps.
