I went to an electronics supply store, like The Source, and picked up a 12V female cigarette lighter adapter. I cut the end off, and wired it into the harness under the dash. That give me a 12v power source that I plug the Garmin power cord into and run the cord under the rubber door seal and under the dash. I bundle up the excess wire under the dash. Obviously, I did this in my car. No reason one can't do this on a bike. For my bike, I bought the appropriate power cable that wires to 12V directly.