[JSeery]

The wires that would have gone to the GM connector are:

Yellow/Purple - Turn Signal Power from the Fuse Panel
White/Orange - To the Brake Switch
Dark Green - Right Brake Light Bulb
Yellow - Left Brake Light Bulb
Light Blue/White - front Left Turn Signal
Dark Blue/Yellow - front Right Turn Signal
Brown - Hazard
Black - Horn

There would also be an Orange wire from the Fuse Panel to the Brake Switch

The wires I can see connected to your Turn Signal Switch are:

Yellow, which would be Left Brake Light Bulb
Gray(?), may be one of the front turn signals
Dark Green, which would be the Right Brake Light Bulb
White, would go to the Brake Switch
Blue, again may be one of the front turn signals
Purple, might be the Yellow/Purple power wire from the Fuse Panel

The wiring colors don't appear to match, but I have seen that before on wiring harnesses!
Looking at your fuse panel photo, the wire connected to terminal 7 appears to be Purple, which would match the wire on the toggle switch.