Need help with aux fan **pics**

[BMWbry]

Alright so it turns out I have no auxillary fan when I bought the car. It was never replaced. Thank you 95 degree heat for reminding me. So I bought a used one and was told it would fit. I cannot find a matching plug for its end anywhere. I think I found something that could be it, and may have to splice into the fan. The fan was off an E28 I believe.

This is what I think is the aux fan plug. Its behind the driver side light right now.

 

[jrt67ss350]

That plug behind the driver's side light is the auxilliary coolant temperature switch connection. The top of the driver's side of the radiator should have a coolant temperature sensor in it - that plug plugs onto that sensor.

 

[BMWbry]

So where does the fan plug in? And I have only 1 temp sensor in the top left of my radiator. And thats already plugged in.