Xiaomi M365 Edition Owner's Manual page 17

We recommend to simulate your ECU's final placement prior to the
connections. This will help you to understand how to manage your cable
cuts and cables' final placement.
The ECU slides in an angle until it sits inside the scooter's frame:
ECU's location
Tidy up all cables surrounding the ECU's location, such as the grey cables
and the red brake line cable, and insert the ECU as shown bellow:
Slide ECU on an angle into the scooter's deck
ECU's final position
Handlebar Control
Unit's cable