wiring diagram for a 89 chevrolet pickup radio I assumed full size truck? 1989 Chevrolet Truck Stereo Radio Wiring Diagram Car Radio Constant 12v+ Wire: Orange Car Radio Switched 12v+ Wire: Yellow Car
wiring with 1989 chevy same model all plugs matched up except oil pressur switch has 2 prongs 90 chevy has 3 prongs, took sending oil unit off 89 and put it on my 90. Only one more difference was gray
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