Sorry that I can't answer your question...but I am extremely interested in doing the same...but I also want to stay as close to stock looking, which I love, as possible. Trim pieces are usually held in with retaining clips. I know that the trim around my shift **** was popped up...not sure how...and I just pressed it back into place. So I would think a small thin rounded piece of metal, similar to a non-serrated
butter knife could do it. That's all I used to pop the radio trim on other Chryslers (Sebring and 300M). Let's hear from the experienced members. Several others have installed aftermarket radios.