im having an issue with one of the head units in my cars. honestly, im stumped as to how to go about fixing it. the radio functions perfectly fine. i can change stations, cd's work fine, even the ipod. all the buttons light up, except for the screen. the screen doesnt work at all. no display, so i have no clue what song or station im listening to, nor can i make any adjustments to the radio. i tried cleaning the contacts on the back of the faceplate and radio, i made sure none of them were bent, and still nothing. its a pioneer deh-4900mp. its well out of its warranty period so thats out. its a great radio, well, prior to this happening it was great. completely random too. one day it worked, and the next, nothing. if anyone on here is good with electronics and wants to shed some light here, id appreciate it. id like to at least attempt to fix it. i looked on ebay to see if i could find a used face plate and theres nothing. id hate to just throw out a good radio for a stupid little issue.