if it's thin vinyl go to the hobby store, look for model aircraft coverings.. they're pretty durable and pretty hard to fade under UV. Some of them comes with ironable glue backing.. basically set it on the area to be covered and use an iron at medium to low seting to activate the glue. if you use heat gun or even warm oven mitten, you can follow the panel's contour perfectly. Certain few has fabric grain, some other have carbon fibre and kevlar pattern, neat stuff. Any colour from metallic to solid, glossy to matte finish.
otherwise i just redid my door panels with some thicker vinyl from one of the girlie store, said auto grade on the label...so not expecting it to fade anytime soon. available in most interior colours.