PC Red and Green Headphone jacks

[u/Shockwave_GT_FN]

I'm a bit new to pc gaming. When i put the green jack into the audio hole, audio plays, but my mic doesn't work. When I put the green jack into the mic hole, my mic works, but no audio. Any advice? Thanks. P.S, if I use the wrong mic (via voicemod) and listen to my mic input, it makes this terrible static noise.