I really want to replace our sun-damaged mirror covers with the bright finish covers shown as accessories in our 2015 LR Brochure. According to LR’s online parts catalogue the bright finish fits only ‘16 to ‘22 models and I need the paint-to-match covers used from ‘14-‘17. I do see that the mirror body is a different part number. The question is: if the painted cover is used all the way to ‘17 why wouldn’t the bright finish fit my ‘15 model?