Volkswagen Repair: jetta, emery cloth, ground connections

Question
single lights don't work i look at all the fuses and ? unno maybe you can tell me if they hide the fuse for the single lights

Answer
I would have to say a ground issue is the most likely problem.  Check for the proper ground connections in the harness connectors themselves, and on the body of the car.  It will take some time, and it will be tedious, but if you persevere, you will find the broken wire, or the corroded connection.  Also look at the actual pins that make contact inside the light housings too, they can get burned, and charred.  Clean them with emery cloth, and make sure they are nice and clean, then put the bulbs back in, and try the circuit again.  Good luck.