does anyone know if the center caps off my 06 LE 17"s will fit on the 09+ pro4x 16"s? also are the center caps the same shade of silver? i know part of the pro4x wheel is gunmetal. i'm asking this because i'm interested in buying a set of pro4x wheels for my truck but they are not including the center caps. i'm hoping to just take the caps off my 17"s and transfer them to the 16"s. thanks