- Red: Typically the power wire
- Black: Ground wire
- Yellow: Constant power wire (typically only used for memory settings)
- Blue: Accessory power wire (may be combined with yellow on some models)
- Various other colors: Speaker wires, which will typically come in pairs for each speaker (e.g., front left speaker = green and green/black, front right speaker = purple and purple/black, rear left speaker = gray and gray/black, rear right speaker = brown and brown/black)
It's important to note that these colors are just guidelines and may vary on your particular vehicle. To ensure accuracy, consult the wiring diagram for your specific year, make, and model of vehicle. If you're unsure, it's best to consult with a professional car audio installer.