SUNARISE, you have made some excellent choices! I think you will be happy with the flexibility that collection provides. The one thing I am looking for is a way to secure the GPS on the dash so that when I take sharp corners it doesn't slide around. For now I am using the rubber grips on the side of the Magellan to jam between the glass and the dash to get some grip, but I am thinking about mounting something like
The Clip Vent mount on a vent, with the button on the GPS itself. I don't think the plastic button will interfere with the antenna of the GPS and it would be very secure. I have also thought about just mounting one of the dashboard mounts on top of the dash and using the Clip button on the back of the GPS to hold it in place.