8. About the In-vehicle mode of X1 2nd gen

A: Connect the X1II to the USB port or cigarette lighter port on the car, go to System settings of the player and set USB mode to In-Vehicle.

When vehicle engine is ignited, the X1II will power on too. When you shutdown the engine, the X1II will stop playing and power off. If the Resume mode is turned on, it will play songs directly after the car starts. 

If you want to listen to music on the car with X1II , it's suggested to connect the X1II to the  speakers on the car with a 3.5mm audio cable. The default output mode  is Line Out under In-Vehicle mode.
For convenience, we suggest you use RM1 remote to control the volume and playback.

Note: The USB charge switch is effective only under In-Vehicle mode.