I have a 13 and no matter what I try the piano black trunk deck lid gets dusty about 5 minutes after driving it. The car is squeaky clean but the deck lids all dusty! Anyone out there find something to keep the dust off???
You can try dusting the area with a used dryer sheet as it negates the static that makes dust cling to the surface. It works on electronics and furniture in the house, just never tried it on the car though.