For the last 6 or 7 months my 05 grand prix has been leaking from somewhere. My passenger side floor mats get soaked and it seems like they do after it rains. Ever since my A/C and heat line got shorted out (it stays on all the time) my floors have been getting wet. We think all this is happening from the evaporator drain being clogged. Anyone know where that is located or any other ideas? We've looked everywhere we could think. Thank you