I purchased the APM 2.5+ and 915 MHz telemetry kit which arrived yesterday. I assembled the components and powered on everything seems to work except the GPS. I have established a telemetry connection, can see the attitude, roll pitch, etc. displayed on the mission planner, but the bottom right corner of my screen displays "GPS: No GPS".
I do not see any activity on the 3DR mediatek GPS unit at all. If I apply power directly to the +5V and GND pins on the GPS the blue light illuminates and begins flashing.
Is there a setting I need to adjust in MP to configure the GPS, or a way to diagnose that it is receiving power from the ARDUPilot?