What is the wiring color on a BMW 635csi radio?

The wiring color for a BMW 635csi radio can vary based on the model year and specific audio system. Typically, you can expect the following color codes: the power wire is often yellow (constant power), the red wire is for ignition power, and the black wire is ground. Speaker wires usually include a combination of colors like green, white, gray, and purple for different channels. Always consult a wiring diagram specific to your model year for accuracy.