Just looking for a place to post a picture.
I see that you have a gran coupe face for your dash. But since you asked for a picture.. ..
Can't send in a pm, so here.
The correct way would be to make a tool and melt the plastic after you install the lens but I am not sure if this is an option for you,
There may not be enough original material to do it a second time.
If you have an old cracked up dash bezel cut a little piece out of it to secure the lens.