How to connect the wires to the headphone jack?

These bose cables seem more complex than others I have seen.

I already stripped the cable and have:

2 red wires

2 copper wires

2 blue wires

1 Big green wire

I just want to now what should be my next steps and what tools I have to buy so I can fix the earphones.

I have no experience welding. And I don't know where to weld each wire in the jack.