Leaky cab

[pat123]

My cab has a leak! I cant figure out where! Hepl me please!
The water is pooling around the lower foot well area and drops of water from their straght across the floor to the hump. Theirs not alought but its a little annoying. Thei was rust around the inner cowl corners area that i fixed. When i did it there was no sign or rust above the blower motor area , same area on the other side looked fine to. I also ran some water down thair and nothing. It is summer so this probably wouldnt make a difference but i dont have and insulation on my floor just the rubber mat.
If anyone has anyother suggestions that would be great.

Pat