I got this GPS module last week. But just have time to test it. After read a new manual and I found all feature and function exactly same as WK-M. So, it quite easy for me to set it up.

Info: This GPS module doesn’t need activation or new serial. Just plug it into EXT port and setup.
1. Assembly DJI GPS module / carbon rod / plate with glue.
2. Choose the location where you want to put this GPS module.
3. Plug the GPS cable to EXT port on DJI Naza
4. Run Naza assistant and enter X,Y,Z location of your module.
5. Setup remote and correct 3 mode switch with end point menu.
6. Setup fail-safe
7. Setup intelligent switch (this same as number 5)
8. Test fly!