I have a '99 Ford Explorer with the Mach sound system. For the last 3 years the display has been blank. About once every 6 months, usually during a major weather change, the display comes back and stays on for a few hours. I have looked all over for an explanation and noticed many articles that refer to a "well documented display problem with the Mach stereos." I have found many links to a supposed solution that you have to pay for and yet more links referring to that solution as bogus. Apparently it has even been discussed on these boards because I found an article referring to it in directly (someone had a '96 with no mach system and wanted to differentiate themselves from being thrown into the group with my issue), but no direct discussion of the solution.

Does anyone on here have the definitive diagnosis and solution to this problem? Would you please share it?