So I'm no electrical wizard, and have decided that I need to hardwire my Garmin Nuvi into the truck - already using the 12V accessory plug for satellite radio - and really don't like that, but can deal with it. I like to have the GPS unit on the windshield above and to the left of the instrument cluster - easy to see, and not obstructing anything. Can I wire this directly into the fusebox on the panel below/left of the steering wheel, and how would I do this. This would be a very clean install as the wire can easily be routed through the mold on the side of the dash. Can anyone help me on how to wire this, or if it is possible? I'd like for it to be on a switched power circuit, so that it shuts down when the ignition is turned off. Any help is appreciated!