Do I have to copy all JVC files under : X:\Garmin\JVC
if the other maps are located in : X:\Map\ For instance :
X:\Garmin\gmapsupp.IMG
X:\map\USA.IMG
Or it doesn't matter if I copy them in : X:\Map\XXX.jvc & X:\Map\YYY.jvc
My Garmin device is Nüvi 1390T
thanks