Hey all I am looking for some help with the wipers on my 2000 300m. Sometimes they work perfectly but mostly they seem to have a mind of their own. When you turn them on they'll work randomly, other times they'll swipe across the glass in a pattern; 1,then 1-2, then 1-2-3, etc. Then when you turn them off they will stop in the middle of the windshield... meaning they do not "park" in the full down position. If you want them in the park position you have to time it "just right" when you turn them off. Hopefully my explanation of the problem/description isn't too confusing and you are able to makes some sense of my babble. Is there relay or something? Or is it the switch/turn signal stock that's bad? Thanks for any and all suggestions.