I know it's years later but replying here to help anyone else in the future.
The hose that appears to be below the lower hose in the diagram is actually connected to the top of the radiator near the center and runs under the throttle body.
Let me know if I'm doing anything wrong here, it's my first post. Thanks!
A few days ago I was driving to work when I heard a click and the stereo touch screen turned off. The music was still playing and the dash was still working so I figured it was just a stereo issue and I'd deal with it...