I was checking my battery negitive ground to the frame, and found a plug hanging under the radiator.... im not sure what it is. my best guess would be air temp plug? here are the pic's i took sorry about the quality.

Click image for larger version. 

Name:	Photo098.jpg 
Views:	55 
Size:	62.0 KB 
ID:	21351Click image for larger version. 

Name:	Photo100.jpg 
Views:	51 
Size:	36.3 KB 
ID:	21353Click image for larger version. 

Name:	Photo099.jpg 
Views:	61 
Size:	80.4 KB 
ID:	21352