I connected the other end of the hose to my remixed extruder motor mount. The filament is provided by an external filament holder.
I actually don't know, if this setup works well with a filament loader on top of the machine... Possibly the motor mount has to be further modified in order to perform well (e.g. one right below your spool holder).
Let me know if you're facing any issues and we'll see if we can solve them together ;-)