All my car speakers don't work after connecting my phone to aux input

All my car speakers don’t work after connecting my phone to aux input and charging it at the same time with a power adapter from within the car, the owner’s manual says doing this would cause the output to the speakers to sound poorly (since this surely creates a common ground from input and output at the sound system) but not to completely damage them, I know the speakers worked well before doing this but now the radio, CD player, aux don’t work, sound display still works though, I’m pretty sure it could be a fuse but I’m having troubles finding it since the fuse that controls audio system suppossedly also controls interior lights and that still works fine, anybody knows what could cause this issue and how could it be solved in a Toyota Yaris car? Thanks in advance.