I am trying to install several of the vertical grille trim pieces on my 1939 Deluxe. I have what I believe are the correct grille trim clips (91A-20001-B). I placed the clips within the trim piece and then tried to push the clip into the mounting holes on the grille. But I have not been successful in pushing the clips into the holes (worried about damaging the trim with too much force). Are the clips installed first into the grille and then the trim is slid onto the clips? Can someone explain how they have performed this task?