Ride sharing accessory device and system

A method of authorizing access and operation for vehicle sharing via a portable device is provided. A request reservation is generated to reserve a vehicle via a portable device carried by a user. The reservation includes a portable device identifier and reservation details. Authentication keys are transmitted to the portable device and a plug-in device coupled to the vehicle in response to a successful authorization. The plug-in device is used to perform vehicle access and vehicle operations of the vehicle. The authentication keys enable the portable device and the plug-in device to be paired for enabling vehicle access and operations. An authorization is executed between the portable device carried by a user and a plug-in device coupled to the vehicle. Access to the vehicle operations are enabled in response to a successful authorization. 种经由便携式设备授权用于车辆共享的访问和操作的方法。生成请求预订以经由用户携带的便携式设备预订车辆。预订包括便携式设备标识符和预订详情。响应于成功的授权，将认证密钥发送至便携式设备和联接至车辆的插件设备。插件设备用于执行对车辆的车辆访问和车辆操作。认证密钥使得便携式设备和插件设备实现配对以实现车辆访问和操作。在由用户携带的便携式设备和联接至