I can retake another photo when I have a chance. I don't have a block heater, the thing I circled feels more like fabric, I can feel what it's attached too but no clue stillThat picture is horrible on my machine at least. Do you have a block heater on your car? It looks like the wire harness to my block heater.
Maybe I don't have that then... I've never seen a 3 prong anywhere. I did look around and the closest thing that comes to looking similar is something called a grounding strapIf you have a heater you should have a male 3-prong connector somewhere. Mine sticks out the front grille.
And my wire harness is zip tied out of sight. Yours may have been knocked loose.