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Message: <blockquote data-quote="itliketbeef" data-source="post: 2308759" data-attributes="member: 804298"><p>I have a 99 Ford Explorer with factory premium sound (steering wheel controls, 6 disc changer and rear controls.)  The radio works great but my problem is that the display doesn't work.  I know this is a common problem; I bought a used radio but it also has the same problem.  How do I determine that the issue is with the radios and not in the wiring harness?  There are a lot of wires in the harness, does anyone know which one controls the display?  I do not want to switch to an aftermarket radio and I don't want to spend a ton of money to purchase the wire diagrams.  Any help would be greatly appreciated!</p></blockquote><p></p>