I did a search and didn't really come up with answer. On a 2010 f150 5.4 where does the condensate drain come thru the firewall?

I am getting a rank smell from the a/c after it sits, just started this year. The floor isnt wet, yet.

 

Uh Ha found the bugger last night, it is dripping outside the truck but it runs down the top side of the heat shield. Bad idea