I have a 2004 wrx and it seems every time i use my ac, The floor behind the passenger seat gets soaked with water. This has ben going on for a few months now, and its getting rather annoying.
I think it is realted top the AC because if it rains it will not get wet. It seems to only be wet after long use of the AC.
I checked under the car and looked for holes dents damage etc. to see if water was gettign in somehow, it was all perfect.