Wire Color

[Isensee@aol.com]

The blower motor switch on my '75 isn't working. I found that a wire has  
broken off from one of the connectors on the back of the switch, but I am 
having  
a hard time figuring out which wire is supposed to be connected to it. It is 
the  center connector on the side of the switch that has three connectors. Can 
anyone  tell me what color that wire should be?
 
Scott Isensee