As any of you with a convertible knows, the display is virtually useless in the sunlight.

So I tried using a piece of 3M louvered filter (the stuff they sell as privacy filters for laptops) over the display and properly oriented it for the driver (me).

The results were disappointing. It only marginally helped in some low ambient lighting conditions. Not worth the effort...unless you want to block the display from your passenger.

Has anyone figured out a way to overcome ambient light wash-out?