Water leaking cause I can't find the drain tube to unblock

I have a 2004 Endeavor, The air is leaking into the front passenger foot area. I had it up on a lift and can not find the drainage tube to unclog. Where is the darn thing located?

Did your warranty expire already? I would go to the dealer, your truck was probably manufactured in late 2003, so you should still be covered unless you have run over the alloted mileage.

the drain tube is NOT accesable from outside the car. it requires major disassembly of the interior and HVAC system to access.