The GPS module is primarily used to provide the Magnetometer, sound and SAFETY button for the system. Not all systems will use the GPS localization functionality. The software however does injest the data and can be used for navigation outdoors.
An ARMING board is also included in the kit and can be used with alternative software. This can provide the safety button and sound functionality, but not the Magnetometer needed for robotics navigation using Cognipilot. An updated ARMING board is in progress that includes the magnetometer is in progress. The decision was made to use the GPS module in the meanwhile as it was cost effective.
You need to add first the M10 GPS mount to the metal frame. This is explained in the section Install M10 GPS Module
The M10 GPS cable attaches to the MR-CANHUBK344 as shown below