I own a 2003 Lexus LS430 and just recently have noticed a couple of annoying noises. The first is simple...my sun visors squeak like the devil when they are moved down or up. Obviously one can't get a grease gun or oil can to resolve the issue, has anyone encountered this problem. We live in sunny/hot Florida so this may have created the problem? The second noise comes from under the hood and only occurs after a journey and when I switch off the engine, it sounds like fluid running in a pipe...maybe a/c, the problem with owning such a fine automobile is we become fixated on these trivial issues, anyone have any advice? I don't want to turn the volume of my audio up.....