I was polishing the door panel behind the driver's side and accidentally popped the the left side of it off. How do I put it back on? I have tried forcing it back on, but Im thinking that I may need to take the whole door panel off and putting it on from the top again. Guys, before I waste my money going to the dealership for this, anyone know the answer?

....BTW, the panel I am refering to is the door section below the window behind the driver side(Rear driver's side window)...Also, I do not have leather