What to do about faded exterior

Our camper is a dark gray color, and we park it outside for now (saving to build an outbuilding to put it in). It gets full sun all day, and we've noticed the side that faces south has faded quite a bit. It looks pretty bad, especially since it seems that anywhere there's something directly underneath the surface (like brackets to hold stuff inside), it has not faded. Is there anything we can do to help it look better? Our previous rig was white so we didn't notice issues like this.

We loved the dark gray when we bought it, now we see why most campers are white :(