Same problem here !!!!
it started 3 weeks ago

At first I thought the leak was at the floor sheet metal... but one day in the morning I went to drive my car and it was raining and I had the carpet all wet again. I thought to myself: how could the water come from the road up to my carpet if the car is not even runinning??
I then realized that the leak is coming from somewhere ABOVE.
I havent pinpointed where yet.
I read your posts and I guess I have to check air filter and AC.
Is it visible where the leak is?
Thanks
BB