My car got some minor damage in a parking lot which involved the drivers mirror. I have the folding type with the auto dim feature. Well the damage didnt crack the actual glass but there is some brown looking streaking kinda like behind the glass. I took the car to insurance company to get an estimate and they wrote that the glass mirror itself is replaceable without replacing the whole assembly. I have looked and havent found that this is the case. The assembly is sold as a whole unit. Who is right? Obviously the estimate would be way too low if i needed to replace the whole assembly instead of just the mirror. Anyone have some experience in this?