Is the Protocol Box Mandatory to Install?

[NoahRose]

Protocol boxes generally need to be installed. Here are the details: 1. Introduction: A car navigation protocol box is a square box connected to the navigation tail cable, used for data output to facilitate communication between the vehicle's computer and the navigation system. It is more commonly used in high-end vehicles to decode functions such as the original car's air conditioning display, steering wheel controls, and door opening information. 2. Functions: It features GPS global satellite positioning system capabilities, allowing drivers to know their exact location at any time while driving. The car navigation system includes automatic voice navigation, optimal path search, and other functions to ensure a smooth and unobstructed journey. Integrated office and entertainment features make driving easier and more efficient.