Cranks slow with the key, fast at the relay

Kern Dog said
I do have the terminal with the brown wire grounded since when I patched this car together, I didn't have the wiring that went to the neutral safety switch/backup lights.
I'll try running 12 volts to the yellow wire/terminal.

View attachment 1716366343

I know this doesn’t make any difference,,,,but is that yellow wire almost broken at the terminal in the plug ?
When I enlarged the picture it looks very suspicious .

Tommy