Hi, my son hit a dead Opossum in his aging 2004 pontiac vibe and while I was tucking the fender liner back in place, I noticed this rectangular box hanging down. I have it temporarily zip-tied to the frame but it appears that it was originally bonded to the rusted bracket at the top left of the picture. There are two wires coming out of the bottom. Can anyone tell me the name of the part and the function it performs? Thank you!!