I've just purchased a house with cedar siding. The siding is about 10-15
years old and is well "weather-grayed" except for areas under the eaves
which are mostly protected from the elements. Personally, I like the look
of them, but my wife would like the siding to have it's youthful brown
color.

Is there any way to restore/refresh the siding? Can it be stained or sealed
to give it color that way? Or will staining/sealing counteract the natural
insect and water resistance of the cedar?

Thanks in advance for any advice.