How to Connect 3DS Audio to PC?

[tranquil ginkgo]

(Hi, I posted a similar question last week and never figured it out. I apologize if I'm not supposed to double-ask)

Trying to connect my 3DS audio to laptop.
My laptop does not have a proper mic port, but it does have a Combo port, Thunderbolt 4 ports, and a USB 3 port.

Connecting to either the Combo port or the Thunderbolt 4 (via a USB C-to-mic splitter adapter) results in horrible distortion.

What can I try or buy that would make this better? I keep buying different adapters to no avail, feel like I'm scraping for any solution.

[signal gate]

Whatever gives you a pc audio input that can accept the cable you have to plug into the 3ds

You aren't supposed to use microphone anyway, you are supposed to use line in

There's only one audio out port on the 3ds, this shouldn't be a tricky thing to figure out

Pc inputs vary, and you can add them via expansion devices

USB sound cards have been a thing almost as long as usb, I have one from 2001

It's also all analog, so plug converters exist