Faded Vinyl on Ford Expedition

[DrMark]

Newbie Question:
My ford Expedition has both a light grey vinyl cladding on the lower 1/4 of the body and black vinyl on the running boards and rear bumper. The grey is really showing sun fading compared to the black. What are my options for long term color restoration and protection?
I'm confused by many products for vinyls and rubber always reference "Black" in their names...can I use these on the light grey vinyl parts? Will they cause a unwanted color change? Any help would be appreciated!

[Porsche Pilot]

Check out this new addition to AG. It will not change the grey to black. I think Cee Dog did an in depth review of the product.

Solution Finish Black Plastic & Vinyl Restorer, trim restorer, black plastic restorer (http://www.autogeek.net/solution-finish-restorer.html)