I've just had the windscreen replaced on my LS400 (95 model). Took it back because the wind noise was bad. They worked on it for hours. Reset, put extra gunk around it did many test drives with it, but to me it's still not right. It just isn't as quiet as it was. The replacement windscreen was non-genuine. I read on an English forum that some guy swore that once the original factory fitted windscreen is gone and replaced with an aftermarket you will never get the same level of quiet. Anyone else had this problem or should I be going back to the fitter again?