Chris acts as a proxy between your phone and the car, so all the music, audio notifications and everything else Chris will say will go to Chris and Chris will forward the music to your car. (if you also connected your car to Chris, which is optional). There is no need to connect your phone to the car audio. Technically you have to take a choice anyways: You can either connect your phone to the car or to Chris as most phones (e.g. iPhones) only support 1 Bluetooth connection at a time. With Chris you don´t have this problem as Chris connects to both phone (mandatory) and car (optional for better audio).