MOST (Media Oriented Systems Transport) is a multimedia fiber-optic network optimized for automotive applications. Developed by the automotive industry for the automotive industry, the MOST design provides a low-overhead and low-cost interface for the simplest of devices, such as microphones and speakers.

At the same time, more intelligent devices can automatically determine the features and functions provided by all other devices on the network and establish sophisticated control mechanisms to take away distractions from the driver of the car as different subsystems try to communicate information to him.