Moin, wish everyone a happy new year.For a week the display of the P remains black,it tries to drive up iwie (display becomes bright again dark, ventilation nozzles drive high blower is connected again from nozzles) If you want to listen to music, it still goes. can you make a reset with the radio? Have already tried to disconnect both batteries over several hours,has not helped. Battery voltage measured (default off) right has 12.5V left 11.5V had the charged without result. Charging current in the combo shows 14V, charging current measured at the right battery (motor on)14,5V left 12.5V is connected with it? have already read the vilt only a replacement of the radio helps. Lg Thomas