Where are the fuses for a 2003 VW Jetta?

Look at your drivers side end of the dashboard where it meets the door.

There is a a plastic cover that is hidden by the door when it's closed.

It has a slot where you can insert a flat blade screwdriver. Be careful as it is hinged and excess force will break them.

The fuse map is in the inner face of the door and there you'll also find a tweezer that is used to remove the fuses.