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I would really recommend trying to find a wiring harness from an '89 F150 with a 5.0 - that would be the easiest option. However, you can get a wiring diagram for the lincoln and match up wire colors and destinations. It will take some time for sure, but it can be done. The controls are all the same, it's just a matter of matching up wires and adding what the lincoln had that the truck didn't.