I have a IS300 with the leather/escaine interior. I am curious how people clean this. I know this is a synthetic type material. But ive heard not to get it too wet but not sure what to clean it with. Right now i use a sued brush and jsut brush up the material which seems to soften it. I know a few of you have an IS300 im just curious what you guys use. Oh if your curious the interio is black. Thanks