I recently purchased a handlebar mount kit for my Garmin. When I used it the sun was so bright it washed out the screen. I tried to shield the unit and I still was not able to see it. Yes the brightness was turned up al the way. Any suggestions on a way to combat this issue? I would like to use the Garmin for our Route 66 trip this summer. After all, I did purchase the download route from Garmin and it would be nice to use it.