Using the Noble Pro.2 F1 VB JDM Rear Fog Light is straightforward. First, lay out all the hardware and the plug - and - play harness. Then, install the lamp on your 2022 - 2025 Subaru WRX. Make sure to find a good route for the wiring harness so that water won't get into the vehicle. Plug in the harness and test all the functions. The F1 function is great for getting the attention of drivers behind you during emergency braking. You can turn it on or off according to the instructions provided. The parking light function will give you extra light, especially in foggy weather. As for maintenance, keep the lamp clean and check the wiring connections regularly. Also, be aware that working on your vehicle exposes you to chemicals like engine exhaust, carbon monoxide, phthalates, and lead. So, avoid breathing exhaust, don't idle the engine unless necessary, service your car in a well - ventilated area, and wear gloves or wash your hands often when working on it.