Hi there.
I have recently obtained a used Opal 365125 2din navigation system (Chinese).
The unit runs Windows CE 6.0.
From reading the owners manual, I have found that the unit originally had Polstar Polnav navigation software.
When I obtained the unit, the navigation SD card was already missing/lost.
I have a new blank replacement SD card.
I also have a Clarion unit with working IGO Primo maps.
I also have downloaded IGO8 and HERE maps for my area.
I also just acquired a copy of the IGO Toyota maps from a friends 2019 Prado.

My question is: Where do I go from here to make navigation work on the Opal unit?

I have had a good look through the forums and I cannot find the information I need. Maybe because I don't really know what I'm looking for...

Cheers, Jason.

Getting the maps from the Clarion to work on the Opal would be my preferred outcome.