If powered and wet there is the possibility of electrolytic corrosion in the longer term, especially if power remains 24/7 (i.e. with the ignition off).
ISTR that permanently mounted, and powered, Garmin Quest cradles suffered from this.
If powered and wet there is the possibility of electrolytic corrosion in the longer term, especially if power remains 24/7 (i.e. with the ignition off).
ISTR that permanently mounted Garmin Quest cradles suffered from this.