For everyone who has problems with the step of the fuses

Here's the solution:
First you have to take 1 fuse at a time and then place them in the blue boxes that are scattered around the map

The you have to go to the light pole next to double tap and look for the wunderwaffe at the top and shoot it

Then shoot the 4 boxes with the wunderwaffe and take 1 fuse at the time and place it in the main box fuse on the street

Finally look for a gas can under the blue car near double tap and fill the gas tank of the fuse box

And you're done
English is not my native lenguage so srry if something in not clear at all
Hope this can help :))