I have a Uniden PRO 510XL CB mounted on the top of the dash in my truck. It's a great little radio but the only problem is I can't read the channel display in bright sunlight...there isn't enough contrast. Has anyone had this problem? Any ideas on how to modify? All I can think of is a little cardboard or metal visor for it. I don't want to relocate the radio because it fits really well where I have it. Thanks.