A friend has just bought a RHD Mazda Demio that has a compartment under the drivers side sun visor which has a hinged flap.We cannot work out what purpose it has and there is no reference to it in the manual. Can anyone tell me what it’s for?

 

Most likely it was a electronic Toll device.

Can you post a video?

 

This is the compartment under the drivers side sun visor.

 

Either a GPS tracker or Toll tracker/counter device.