About In-Dash ...

My in-dash type main unit that I use in my friends car has a `` GPS '' menu, does it indicate that this device has navigation support, if it is for navigation, when I enter that menu, the device does not react, how to install, I request help from friends who have knowledge ...

It needs to be installed and updated, but I have no idea how it happened

I don't know what the brand is, but most of them do the authorized service.

The device came as a gift from abroad, so its authorized service is not here ...

changes according to the brand. I used jvc awx 800. There was such a menu on that device, but again, another navigation device belonging to JVC was used for common use. for some brands, it is sufficient to install only one update ...