The standard radio configuration for the 2010 Honda Civic consists of two main harnesses plugged into the back of the head unit.
These units use different connectors for GPS and backup camera signals. Professional harnesses like those from Crutchfield are highly recommended to avoid cutting factory wires. Installation Tips What is a Honda Civic Radio Code & How Do You Enter It? 2010 Honda Civic Radio Wiring Diagram
On some 2010 Civics, the left rear positive is actually Light Green/Yellow . If you get no sound, swap to that. The standard radio configuration for the 2010 Honda
These are the "base" models. The wiring is straightforward. The head unit sends the audio signal directly to the speakers. If you are installing an aftermarket radio, you can simply match the wires on the new unit to the factory harness using the color code chart above (or use a plug-and-play wiring harness). Installation Tips What is a Honda Civic Radio
Below are the standard wire colors and functions for the main 20-pin and 24-pin connectors found behind the radio. Note that Honda uses a specific color code that differs from the generic aftermarket standard (red = accessory, yellow = memory).
For owners of the 2010 Honda Civic with factory navigation, the radio wiring diagram changes significantly. The navigation unit is a "master module" that communicates via a CAN bus (Controller Area Network) data line.