I have "mirror with Auxillary Running Light & Directional Indicator" H/D part # 92059-07A. A lens is cracked and one of the bulbs is out and the lens is blackened in that area. Can you replace the lens? How does the lens come off? The dealer tells me that I would have to buy a new set of mirror (cost $299.95). It will bother me to know that I have a damage part on my motor that is noticeable in the dark. Anyone have any suggestions?