I have a 99.5 Audi with what I think is chrome trim around the windows. It seems to have a clear coat of some kind over it. It keeps turning to a white clouded look to it. I tried to wax it and a couple of other cleaners but, it keeps coming back after a few days or it rains. So far Plexus seems to work the best, but is still temporay. I was looking at Autosol do you think it would work and last longer. Or anything else that would work.