Ardupilot GPS trubbleshooting

Hi, I am new to ardupilot and I am trying to use a gps that I got from a DJI knockoff for a build. It has the pinout printed on the gps (six wires: SCL, VDD, RX, TX, GND, DAT) and when I wired it up it showed a green light, however the telemetry still says “No GPS”. In mavlink configured serial port 3 as a gps however I don’t know the baud rate I should be running at and I am unable to find the gps’ data sheet.