Mikrofon funktioniert nicht - Microphone stopped working

The microphone on my iPad mini 5 stopped working. I am planning to repair it, but have so far been unable to locate the part that I will have to replace. There is a short microphone flex cable being sold here. Unfortunately, I have not been able to confirm this with any other source, I could not even find a proper teardown for this device. It would be greatly appreciated, if you could point me to any other resources! I will also take the time to make a proper guide fort his in the process.