I've had 2 GPS fail because the mini USB connector broke from the board inside. No warranty because "the unit was abused and not used for it's intended purpose."
I now have a Delorme PN40 which has a very robust connector powered by a BurnsMoto usb plug hardwired to the battery.
Great for trails but wont navigate you through town.
I can explain it to you but I cannot understand it to you
2013 Guzzi Stelvio
2010 KTM 690 Enduro
2009 KTM 400XCW Plated