I have wired my zumo direct to the battery running the wiring behind the l/h side panels The garmin lead has an inline mini or micro fuse fitted.I do not use a switch and the mount is pemanently live.With the proviso that I cover the mount with a plastic bag if the bike is parked with the zumo off in damp conditions.The zumo mount is held on a RAM mount 4" leg off the l/h bar.Good location for access to the zumo screen.