Generation 2 Volt (2016-2020)
I have a 2017 Volt (named: Wattson) and it has the premium sound and nav.
I have tried to upload POIs from a Fat32 formatted USB but it doesn't seem to work. The file format I am using is:
..\myPOIs\example.csv: Longitude coordinate, Latitude coordinate, "name","additional info",telnum