In search mode for a sun glare hood on my Garmin Nuvi GPS with a RAM cradle.
Reviews indicated the clip type did NOT fair well at speed, Glarestomper Velcro model interfered with the power button. Snap on type was NOT compatible with the RAM cradle.
Solution for a glare and dust screen came from Staples. It was a contact or recipe card box costing under $4. I cut off the top and modified it like this.


