I took off my door panels and it seems as if the door card are built into the door panels. I'm wanting to do my door card to match my headliner that I redone, however I'm stumped on this.
I've seen a few different door panels with custom door cards, just lost on how they were done.

 

Sorry, after re-reading I see your question is diff. (first thought you wanted to know how to remove the card)

My cards seem like a solid Tupperware piece LOL

 

Thanks again brother, always saving the day!