2014 infotainment USB, aux and CD inoperative

I hope I post this on the correct forum. I also posted this before, got a response but could not find it.

My 2014 CX5 touring CD, AUX and CD touch button is not lit up, I connected the USB and no response. I put a headphone jack in the aux,... Nothing!

Do I have to download FAT32 and install it? Can someone tell me in detail how to do this please?

Thank you
 

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