Using this USB charger port is easy. Just find the unused slot on the back of the center console in your 2022 - 2025 Subaru WRX base model and install the charger ports directly. It's plug - and - play, so you don't need any special skills. Connect it to the power source through the y - harness and it's ready to use. When using, make sure the devices you connect are in good condition to avoid short - circuits. As for maintenance, keep the charger ports clean. You can use a dry cloth to wipe them regularly. If you notice any signs of damage, such as loose connections or a blown fuse, stop using it immediately and contact customer service.