Using this Crawford wiring harness is straightforward. First, identify the Crawford mirror light bracket on your Subaru (2018 - 2023 Crosstrek, 2017 - 2023 Impreza). The harness is designed to fit it perfectly, so just connect the parts. Make sure to use the race - style wire plugs to secure the connection between the power and the pods. When mounting the relays and fuses, you can attach them to the Crawford Performance Circuit Board for easy access. As for maintenance, keep an eye on the protective mesh around the wires. If you notice any signs of damage or wear, it's a good idea to replace the mesh. Also, check the connections regularly to ensure they are secure. Avoid exposing the harness to extreme conditions for long periods as this may affect its performance.