Need help quick

I was on my way to Dallas and the temp gauge was acting funny. It was bouncing for a while, then it read cold, then hot. So I didn't pay much attention to it. Later I pulled over and checked the engine and it was overheated. Then the radiator blew up in my face. :)

Now I changed out the radiator and the thermostat. Re-wired the radiator fan(cause it wasn't working). But I also found a wire with what I believe to be the engine tempature sensor just hanging near the engine. It's got a yellowish tip with two bolt holes on each side. Does anyone know where this would plug into?? There are so many wires and tubes, that I can't see a place to plug it into.

Then the radiator blew up in my face.

I can't help you, but I feel your pain bro. My car pissed antifreeze on my leg due to the hole in my radiator.

A quick question that has been bothering me for a while. Is it
"rad-ee-a-tor"
or
"raid-ee-a-tor"