New fail Android Car BMW e60 LOW VOLUME POWER

The Android has worked again and it has done it for three days without problem, but two days ago I detected a secondary problem. When I turn on the car and the Android starts, the music volume is barely 25%, I have to go to settings / volume and move the level from back to front so that it sounds with the normal level, but when I turn off the car and turn it back on, the same thing happens again. it only happens when the sound source is android, with the car radio it doesn't happen