vinyl windshield removal
You may be able to see an outline of where it used to be though. Not sure how to help that. People on here have good results with claybar on water spots etc, that may help.
Most likely, you won't even need to do step 2 or 3.
You can get 0000 steel wool at any home improvement store.
Most likely, you won't even need to do step 2 or 3.


