Thought I would rewrite this the colors are correct it just did not look clear enough
Buzzer wires are brown/blue in bucket if you have it. Other buzzer wire goes to black in bucket.
orange/white is for the park on the left front signal
blue/white is for the park on the right front signal
brown/white is for speedometer and tachometer back lights
Roach is correct the blue is for the right turn
orange is for the left turn
see what is going on blue and blue/white right front side
orange and orange/white left front side
the rear turns signals do not have a park wire.
This info is for a 750K8 I think the turn circuit is the same for all