u/Jambon371

My 2013 Mazda 2 head unit won't switch to the AUX menu when I press the CD/AUX button. I pulled out the auxiliary/USB module because I know these are notorious for the internal physical switch wearing out and failing to detect plugged-in cables.

​I tried shorting Pin 1 and Pin 5 on the board to permanently bridge the detection circuit as i read this could work but the dash still won't register the AUX.

Any idea what else i could do other than send it to the shop to get fixed?

Thanks!