How do you refurbish the side panelling for 2003 Ford Expedition?

I drive a Ford Expedition 2003. The the siding is dry and doesn't shine as it once did when new. I have been using wheel shine to get it to shine but with not very good results. What may be the best product or technique to shine the door siding???????How do you refurbish the side panelling for 2003 Ford Expedition?Pure Magic will do