This is a wiring harness for a backup camera for the 30 series Prius. You can install the wiring from the service connector in the passenger footwell to behind the navigation unit. We do not have a complete list of compatible navigation systems and vehicle models, so please check the photos and your actual system. Total length: Approximately 2.5m 4P connector: Connects to the navigation unit 4 terminals: Insert into the connector in the passenger footwell of the vehicle (some connector removal is required) * Wiring from the rear hatch to the footwell is pre-installed as standard on the vehicle. * Wiring colors, etc., may be changed without notice if they do not affect use. * Terminals and wiring are securely crimped using dedicated equipment. * When inserting into the connector, make sure the terminals are oriented correctly and do not apply excessive force. * Basically, there is no support for the work. * Please have the installation work done by someone with specialized knowledge.