Im using Retropie 3.0 on a B+ board and would like to add my Hifiberry Dac+ sound board. But I’m not sure what to do. I’ve updated the Kernel but the DAC board just won’t work. No sound and no LED indication at all. I need to install the drivers I guess, but I can’t seem to find any help when googling on the matter. Just a guide in which you’re supposed to use the hifiberry installer on an empty SD card. I should be able to install the DAC board into my Retropie setup, right? Any ideas?