My JLF didn’t come with a harness either. I just took out the old stick, cut the wires right next to where they connect to the stock agetec stick. I was left with the five loose wires still connected to the PCB. Off hand I don’t know which color wire corresponds to what joystick input, but I know that the Sanwa stick pins don’t have the same functions as the stock Agetec, so you’ll have to find a diagram in the Essential Stick Modding Thread or use trial and error.
Here’s what you can do if you can’t use solder or disconnects: Just twist the wires onto the pins. Attach the wires that correspond to pins 1, 3, and 5 by making a tight loop and sliding them all the way onto the pins. They should go back onto the pin as far as they can. This is so they won’t touch the wires on the middle pin and make a bad connection.
The Agetec stick has a lot of extra wire connected to the buttons, so trim off a couple 1.5 or 2 inch lengths. Take these and attach them close to the front end of the 2nd pin and 4th pin with a tight loop. These should be attached so that they don’t touch the adjacent pins and make a bad connection. Next, just twist the remaining two wires from the PCB onto these extra lengths.
To finish, you might have to fit small wedges of electrical tape, or another electric-safe material, in between pins where the wires are touching, or close to touching so nothing goes wrong after you’ve closed up the stick.
Your english is pretty good, how is the competition in U.A.E.?