You can use the attached diagram for assistance, but here goes:
1. Blue/Yellow (Pin 1) - Illumination (+12V) (when headlights on)
2. Black/Yellow (Pin 1) - Main Power (+12V)
3. Light Green/Black (Pin 2) - Memory Power (+12v)
4. Black (Pin 11) - Ground
5. Blue/Red (Pin 9) - Left Front Spkr Return (-)
6. Green (Pin 19) - Left Front Spkr Signal (+)
7. Brown (Pin 10) - Right Front Spkr Return (-)
8. Light Green/Yellow (Pin 20) - Right Front Spkr Signal (+)
9. Blue/Orange (Pin 7) - Left Rear Spkr Return (-)
10. Green/Yellow (Pin 17) - Left Rear Spkr Signal (+)
11. Green/Red (Pin 8) - Right Rear Spkr Return (-)
(Note here that the wire color at the rear speaker is
Green/Blue - not sure if this is a misprint (see diagram))
12. Yellow (Pin 18) - Right Rear Spkr Signal (+)
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