If it like 2 loose butt connectors but with a rubber boot around them sort of? Black and yellow? Sounds to me like the Cooling Fan Sender things. It doesn't matter which one plugs into which thing. The thing it plugs into is a cylinder with 2 prongs sticking out. Basically when the coolant gets a certain temp that sensor connects the two connections giving power to your fans. Stick them on any way you want.