A. Waterproof: It is recommended to choose a location that is not prone to water ingress to ensure the dryness of the terminal. Attention should be paid to keeping it away from the air outlet of the air conditioner to prevent condensation water from accumulating inside the terminal and seriously affecting the service life of the product when the temperature difference changes.

　　B. Shockproof: The terminal cannot be installed in a position with significant long-term vibration in the air.

　　C. Anti interference: The terminal should be kept away from electronic devices such as audio, video, and intercom in the vehicle to prevent conducted and radiated interference.

　　D. Pay attention to the fact that the receiving surface of the positioning antenna must be facing upwards and there should be no metal objects blocking it. In order to achieve the best effect, the bottom surface of the positioning antenna should be installed as flat as possible, and the inclination should not exceed a 45 degree angle?

　　E. The wiring should be concealed as much as possible, and it is recommended to: first, be aesthetically pleasing, and second, prevent unintentional or intentional damage.

　　F. The positioning antenna interface must be connected to the interface marked "Positioning Antenna" on the side of the terminal, and ensure that it is tightened to avoid long-term vibration causing the interface to become loose and affect the positioning effect.

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