Our customer is using MC7596s on BSP35, and are looking at using an External GPS receiver when the MC75 is docked in the Moto Vehicle Cradle (through the Serial Port). Does OR Can the OS handle the switch between External and Internal GPS data sources? Does the customers application need to manage this? They are also looking at MC75As for another project ad would want the same functionality, or expect to change the code for both models if required.