This is the offending part. Ram mounts this zip tie by pushing it into the top of the frame, and the tail you see sticking up (where they clipped it) rubs on the bottom of the cab. Eventually, the cut tail wears through the paint on the bottom of the cab (as depicted in a photo a couple posts back) and starts making a creaking sound that sounds as if it's coming from your seat/steering column inside the truck. I completely removed the zip tie with a pair of channel locks so that there’s no possibility of the creak returning. The cut tail is completely smooth and polished on mine from rubbing against my cab. This zip tie can be found under the drivers side floor board, between the round vibration dampening can and the large electrical connector mounted to the side of the trucks frame. If you have power running boards, you must deploy the step to gain access to this zip tie, as it sits directly behind the front folding bracket on the side step.