GPS not working on DR02

I installed the AUKEY Dash Cam DR02, Dashboard Camera Recorder with the GPS add-on. Everything with the camera works as designed, but the GPS will not work.!
No speed, no GPS coordinates, am I missing something? Can Someone please help me with this. I will be installing a DR02 D on my son’s car next weekend and will also be adding the GPS add-on. I hope I do not have the same issue with his.