Using your Noble V1 Multifunctional Rear Reflector Lamp Kit is easy. First, identify your vehicle's factory wire colors as we've listed them. Then, match them with the lamp wire colors according to the lens option you have. Connect the wires using Posi - lock connections. For the red and dark - smoke lens lamps, you can use one function for parking or fog lamps and the other for an extra brake or turn signal. With the clear - lens lamp, enjoy the added intense reverse lamp. As for maintenance, keep the lamps clean with a soft cloth. Check the connections regularly to make sure they're secure. If you notice any issues within the 1 - year warranty period, contact us as it's covered against manufacturer defects.