1999 Silverado radio plug pinout

Started by routeboy, Aug 04, 2021, 03:48

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I have a 1999 Silverado which has an AM/FM CD head unit and a slave cassette player in the console. I've found a list of the wire colors and what their purpose is, problem is, a few colors I have more than one of that color. I don't want to put +12v power in, to a wire that may be a signal out wire. It has what they call the 20 pin plug. There is an upper and lower plug. Both plugs are one piece which have a grove separating each side of the plug. The top plug is black with a 6 pin plug on the left and a 4 pin plug on the right. The bottom plug is white with a 4 pin plug on the left and a 6 pin on the right. If anyone has a pin out the shows which color wire goes in what pin hole I would love a link or be able to look at it.