Originally Posted by e3NiNe

Can you post the parts list?

I'm guessing ...

For the headphones into the PC:
[2.5mm (female) to 3.5mm (male) adapter] to [3.5mm (female) to 3.5mm (male) extension]

For the PC sound to the controller:
[3.5mm (male) to 3.5mm (male) extension] to [3.5mm (female) to 2.5 (male) adapter]