Mazda Repair: 1996 Mazda Protege, mazda protege, moulding

Question
I have a question. A 1996 Mazda Protege has sometimes water leaking inside the car on carpet and a back trunk. I cannot find where the water come from.  

Answer
dident say where inside car its wet' i do get alot of them for pass side floor wet. there is a drain for the evaperator box that sometimes gets plugged, it sticks out tho the firewall on pass side. as for trunk i prob replace the trunk moulding and see if that fixes it