By trace wires, I mean get a circuit tester and follow the wires until you find something wrong. Since everything stopped working when you changed the fuses, start at the fuse box. It's tedious and a huge pain in the ass, but it's all I can think of to tell you. If someone pulled/ripped out wires when they broke into the car. You might have a short, or a poor connection somewhere. This would explain why something as harmless as changing fuses would (with a little jiggle in the right place) cause something unrelated to stop working.