Re: Nav/Radio screen protector?
If you really wanted to, probably just buy an iPad screen protector (or something similar) and cut it down to size.
Most are anti-glare also, might help when viewing with the sun roof open. I know on occasion, it's difficult to see in bright sunlight.
2011 Jeep Grand Cherokee Overland. Dark Charcoal. 18" black cast aluminum wheels. 275/65/R18 Nitto Terra Grapplers. (replaced the Firestone A/Ts in the pic) Rock rails. Skid plates. Tow hooks. Huskyliners. 44K miles as of 11/13.