14. What is the function of the M17' In-vehicle mode? And how to use it?

【Principle】After turning on the In-vehicle mode, you can connect the M17(USB 3.0 port) to the on-board USB port, and the M17 will power on automatically and switch to the In-vehicle mode screen when the vehicle engine starts, and power off automatically when the vehicle engine stops. 

【How to set】Go to Settings->Global->In-vehicle mode, or the drop-down menu to turn on the in-vehicle mode.

(Some onboard USB ports may encounter interruptions when connecting to the M17, in which case you can try to use FiiO's USB isolator, the LA-UA1, to fix the problem.)

*The in-vehicle mode will only work for USB 3.0 port in the M17.

You could refer to this video for help: https://youtu.be/84GonCzm_aM