08-25-2023, 05:17 AM
Not sure if anyone else had this. But setup subwoofer no prob on rca. However as soon as I touch volume button on any song, in Android Auto, USB or Bluetooth, the subwoofer output significantly decrease. Seems to be rca issue but with the headunit. Using TDA7851 for amp on headunit if that has anything to do with the output for subwoofer rcal. If I go to next song everything normal again until I press volume up or down the volume output for subwoofer out almost disappear. Anyone else get this issue?