I searched but couldn't find whether anyone has replaced the tubing that runs down the A pillar from the sunroof. I've cleaned the drains multiple times with different solutions (vinegar, dish soap, foaming evaporator cleaner) and weed wacker line with a pipe cleaner wrapped around it. Each time, it stays clean for about a week until it starts smelling like mildew again. I doubt I can clean the tubing effectively enough from the drain opening to keep the mildew from getting a foothold. If it's possible I'd like to pull out the tubing and replace it.