I found a cool tv mounted in a factory sunvisor offered on e-bay. Its a direct replacement for 04 trucks. go check it out and let me know what you think.

 

looks pretty cool, doesnt give much info about the tv. You might want to find out what kind it is first before you order so you dont get a junky tv. Pretty cool that he can match the color of your truck. If you want to save some money, and have the skills to doit there are visor monitors at teptronics.com http://store.teptronics.com/sunvimo.html
Ive ordered stuff from them before and they're pretty good. Never done it before, but shouldnt be too hard. Might want to check google for a how to install a visor LCD.