It is possible to connect an Xbox controller to a Tesla Model 3. There are two ways to do this: wired and wireless.
Wired connection
For a wired connection, you can simply plug your Xbox One controller into an open data USB port on your Tesla. If your Model 3 was manufactured in November 2021 or later, the USB port in the center console may only support charging, not data. In this case, use the USB port inside the glove box.
Wireless connection
For a wireless connection, you’ll need a Bluetooth dongle to pair your Xbox controller to your Tesla Model 3. You can use a Bluetooth dongle such as the one made by 8Bitdo or the Mayflash Magic NS 2. Plug the wireless adapter into the Tesla’s USB data port.