I2s audio crackling

[Woodr009]

To anybody that can help me,
I've installed an adafruit max98357 I2S amp and the sound works but is accompanied by some crackling. Some games are worse than others which I thought was a little strange. Also, when I hold the input wires together between my fingers the crackling goes away, for some games only. I'm not sure if I'm using the wrong gauge wiring or a I need some kind of filter or I'm just getting interference. Right now I am just using standard jumper cable wiring. All my solder points have been done very thouroughly. I'm a bit puzzled on where to even begin troubleshooting this. Just wondering if anybody has had the same issue and might be able to help me. Thanks.

[Helder]

Posting pictures helps but it's likely the wires need shielding to block interference from the other wires and components likely close to the speaker wires or amp.

[YaYa]

Shielding is a good path to follow as avoiding jumper wires which are really poor quality in general

[Woodr009]

Posting pictures helps but it's likely the wires need shielding to block interference from the other wires and components likely close to the speaker wires or amp.

Thanks a lot! I was kind of figuring it could be an interference problem. I'll research some good methods or wires to use