[otto888man]

looks like the connection is just above the arrow you have drawn.
you could also pour some water & visually see where it's leaking.
it will be just around where you have taken the photo.
i hope this helps.

 

[otto888man]

it will be on or near the A pillar.
it should be going straight down I believe that there is a connection point close to where you took the photos.
you will need take out the blower motor & dig out where it leads to.