On the Dell Latitude 5430 Rugged, GPS comes with the optional mobile broadband modem. Both the 4G LTE (DW5821e) and 5G (DW5930e) modules support GPS and GLONASS.
RF pass-through connectors on the bottom let a vehicle dock connect GPS and cellular to roof-mounted antennas. See Mobile Broadband - Dell 5430 Rugged.