Color coded stereo wiring diagram needed?

1989 FORD F-250
354,390 MILES • 4.9L • 6 CYL • 2WD • MANUAL
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MOUSE357
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So, I can wire my stereo up. And those wires are not cut. Someone just added wires to them. I don't have money for an adapter so if someone could please help me with the color code I'd appreciate it. Thank you for your time. This is the stereo I took out of it.
Apr 13, 2023 at 2:42 PM
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CARADIODOC
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Here's the entire diagram. I expanded the plugs for easier viewing.
Apr 13, 2023 at 3:17 PM
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MOUSE357
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CARADIODOC, sorry to bother you again. But a quick question if you could help me please? As far as the LB/R and the O/BK what do I do with those wires? Do I wire them together or do I need them hooked up? Since the one goes to the instrument panel, and the other ties into the Dome light switch. Not trying to mess anything up here. The other wires work I hooked the stereo up. But then realized I still had those 2 wires to deal with. Thank you in advance for your time.
Apr 15, 2023 at 3:09 AM
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CARADIODOC
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Those two wires will not be used. With the original radio, the orange / black tells the display to dim when the headlights are turned on. The light blue / red comes from the dash light dimmer and tells the display how much to dim. Ford has always done everything very differently from all other manufacturers. This dimming system is a perfect example. I'm right in the middle of building a new radio workbench, and for the first time I'm going to be able to test remote amplifiers and display dimming operation. I have to build two totally different display circuits, one for Fords and one for everything else.
Apr 15, 2023 at 6:05 PM