First you will need to register Tunerstudio to unlock the GPS features.
After registering Tunerstudio go up to the communication tab at the top of Tunerstudio, click on “GPS Configuration”. A window will open and you will see a check box at the top of the window, click to enable GPS. Next select which com port the gps is connected to. Typically if the gps was plugged in before powering the powering the PiDash the com port will be USB0. Next select the baud rate, it should be set to 115200. Once everything is set click “Accept” then your done!