Pulled the air duct out of a box yesterday. Scrubbed it and hosed it down. Today I reglued the foam on the back and did a little repair. One of the pivot points was gone. I VERY carefully drilled a hole. started with a pilot hole then with just a bit in my fingers to stay at correct angle -enlarged it. Took the stem out of a pop rivet. cut one side flat for clearance. slid in from the back using the stem I removed as a guide from other side. was pretty tight, but added a little JB weld to secure it from the back.