
To use the CarPlay function in a car, a data cable is required for connection, and it is best to use the original data cable that came with the phone. Here are some related details: 1. Concept: CarPlay is a car system released by Apple that connects to an iPhone via USB. 2. Features: CarPlay offers a wide range of functions, including car navigation, music, answering calls, text messages, and radio. All CarPlay features can be interconnected with the phone, and all operations can be controlled via the phone. However, the navigation function in CarPlay does not support third-party apps; it only supports the built-in navigation feature of the Apple system. The music playback function can use third-party apps, and if it is inconvenient to make calls manually, Siri can be called to dial, providing convenience for the driver during the journey.

Recently, while researching CarPlay, I found this issue to be quite common. Wired connection is indeed the most basic method—just plug in with a data cable, and it works stably while charging simultaneously. However, many new car models actually support wireless CarPlay, such as brands like BMW and Mercedes-Benz, allowing connection without plugging in a cable. Although wireless is convenient, it may sometimes experience delays or stutters, and audio quality could also be affected. Wired connection, while a bit more cumbersome, ensures stable transmission without disconnections. Whether to use a cable or not depends entirely on your own habits and the car's infotainment configuration—Apple's official website has a complete support list for reference. By the way, if using a data cable, it's recommended to choose an original or MFi-certified cable, as off-brand cables may cause poor contact.

As someone who frequently tests new cars, I believe it depends on the situation. Older models generally only support wired connections, with USB ports located in the center console or armrest box. Newer models are gradually adopting wireless functionality, allowing connection via Bluetooth and WiFi through the vehicle's infotainment system. The wireless version indeed offers hands-free convenience, but there's a catch: some budget car systems may experience navigation drift after wireless connection. Also, note Apple's protocol restrictions: video apps will lock the screen while driving, which applies to both wired and wireless connections. For long trips, using a wired connection is recommended to preserve battery life, while wireless is more convenient for short distances.

A driver with five years of CarPlay experience shares insights: Data cables aren't the only option but the most reliable. Wireless is convenient but limited by the car's chip performance—my old car would lag within ten minutes of wireless connection. Wired connections never failed and allowed simultaneous navigation and charging. Newer iPhones work better with braided cables for durability—avoid cheap 9.9 yuan free-shipping cables. Always keep your car's infotainment system updated to the latest version, or wireless features may stop working.

As an automotive engineer, I can say from a technical perspective: USB cables provide the most stable signal transmission. Wireless transmission via Bluetooth handshake and then WiFi is more susceptible to interference from the metal car body and other signals. Interestingly, with a wired connection, the car's infotainment system acts as a display, causing the phone to heat up; with a wireless connection, the car's processor has to participate in decoding, making the infotainment system itself run hotter. I recommend using wireless when parked in summer, and wired while driving for better safety. Note that insufficient voltage from the car's USB port can cause repeated reconnections.


