[Glassman66]

I'm in the Auto Glass field, I've dealt with ribs of leak issues. You have to start at the bottom and work your way up. Water doesn't fight gravity unless it's a pooling and emptying situation.

So determine where the leak is coming from by putting a hose at certain levels working your way up until you have water coming in.

Start with door seals. If you have a sunroof these can have the drains clog and pour over.