2005 Accent - Wiper fluid not working
 

I have a 2005 Accent, and no wiper fluid is coming up, neither in the front nor the back.

I checked the tank and it is full, the motor does not appear damaged or corroded and it makes a whirring noise when I try to spray the fluid, so I suspect it is working (or trying to, anyway). The hoses feel empty to me, and I'm not sure how to trace them to the windshields.