1989 525i (02/89)

Need some electrical help here. I found that the Auxiliary fan switch (or Radiator Fan switch or Double Temp Switch depending what resource you use) has been trashed. Not sure how it happened (I have had the car a short time and am finally getting some time to poke around (plus my A/C isn't working so I was trying to diagnose). I am going to replace that no problem, but the 2 of the 3 electrical wires that connect to it are cut off. The one good one was not connected. I have searched the forums and looked online, but can't find a good electrial diagram of what goes where. I can provide pictures tonight if that would help.

Any advice would be appreciated.