From working on hardware with GPS-functionality tacked on before, I can suggest a simpler solution;
1: Find the GPS module, and look up its data sheet.
2: Spoof the data coming out of its IO ports. Cheap GNSS modules that spit out NMEA messages on a serial line are everywhere. (I guess because they're super cheap, and easy to integrate)
1: Find the GPS module, and look up its data sheet.
2: Spoof the data coming out of its IO ports. Cheap GNSS modules that spit out NMEA messages on a serial line are everywhere. (I guess because they're super cheap, and easy to integrate)