Is a Protocol Box Necessary for Navigation?

[GageRose]

Generally, a protocol box needs to be installed. Here are the details: Introduction: The car navigation protocol box is a small square box connected to the tail wire of the navigation system. It serves as a data output device to facilitate communication between the vehicle's onboard 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. Features: Equipped with GPS global satellite positioning, it allows drivers to know their exact location anytime while driving. The car navigation system offers automatic voice navigation, optimal route search, and other functions to ensure a smooth and unobstructed journey. Integrated office and entertainment features make driving effortless and travel efficient.