So, after 5 yrs I finally broke down and might a nice Garmin 8" gps unit, this will help my marriage and save me gas money! I have a Ford E-450 chassis, and am wanting to hear pros and cons of different mounting locations in relation to placement on the dash/ windshield, I am concerned with hindering the drivers view, and not sure if mounting it at the center of the dash or attaching it to the windshield so it hangs above the rear view mirror would be the best options?