Thanks all for your comments.
I finally answered my own question.
Yes the upper quarter panel area can be accessed removing the tail light.
About 27-28 inches deep. After that there is a transversal plastic support bedded in yellow foam.
Lucky because the ding seems to be a inch before that support.
The access is at the leftmost hole. See the red circle on the pic below.
Again thanks all.
Threaded Mode
