Voltage regulator - extra wire - 1983 SC
After testing I decided my voltage regulator was faulty and needed replacing.
On removing the old regulator I found an extra wire attached to the blue wire post and soldered to the right hand terminal (as you look at it) of the regulator.
I am no auto electrician - any ideas on why this wire is there ?
Do I need to replace and reattach ?
Photos attached

