Hi folks new member here, I have an issue with my 2013 Audi A3 8v,s sound system that’s getting annoying now, when driving with music playing loud words are really loud but then when bass and music kicks in the volume seems to drop considerably has anyone else had this problem and we’re you able to fix it? It’s the pop up navi unit in the car, I’ve been told it’s the gala setting that is causing it and if I turn it up or down the problem will go away but it hasn’t 🤦‍♂️ Any help or advice would be much appreciated 

Diagnostic check is recommended. You could always upgrade the sub, amp and speakers.