Mic doesn't work with audio cable

Apr 18, 2018
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So, I've bought one of the Audio cables, which let you plugin your headphones and mic into one jack by putting both the jacks on one side, and the other to computer jack. I have this SRS Control Panel installed which came with my Realtek drivers. Whenever I plug something on the computer jack, it comes up with 3 options of what I plugged in. First being Line in, Second as Mic in, Third as headphones. When I select Line in or Mic in, nothing, the mic or the headphones work. Upon choosing Headphones, my earplugs work, but mic doesn't. Anyway to fix this? What should I do get the both working. Any help would be greatly appreciated.