I've just been doing some work on the underside of a Whirlwind playfield, and have come across a problem. The switch for the right hand spinner has a wire going from the back of it, about 4 inches long, and is connected to nothing.

Can anyone have a look and tell me where this yellow wire (it might not have been yellow originally) is meant to connect to? It presumably daisy chains to another switch, but which one?
Thanks

Can anyone have a look and tell me where this yellow wire (it might not have been yellow originally) is meant to connect to? It presumably daisy chains to another switch, but which one?
Thanks