Do the other speakers work? If yes, then your fuses and head unit are ok, you've got to check the non-functional speakers and the wiring inside the door. Might also be a good idea to wait and let the water dry out, things may come back to normal.
A forum community dedicated to all Audi model owners and enthusiasts. Come join the discussion about performance, maintenance, troubleshooting, modifications, classifieds, and more for your favorite models!