Wiring diagram for stock am/fm cassette for a 1986

[57rookie]

I sold my 57 and picked up a 1986 GMC Wrangler that has all the options.

I am starting the restoration to stock. I have the originaI GM digital tuner stereo with am/fm cassette that I want to reinstall but the previous owner cut out the harness end and wired up a din style stereo. I don't have the harness plug that plugs into the back of the original stereo so I don't know which wire goes to which pin in the back of the original factory stereo. Does anyone have a schematic showing which color wire goes to which pin in the back of the factory stereo. Thanks!!!!!