Provide your vehicle year, model, and whether it has a factory amp or navigation — I will give a model-specific pinout and recommended harness adapter.
Note: On some 08600 units, pins F, G, and H may shift position. The most reliable constant 12V wire is usually the thickest Yellow or Blue wire. Toyota 08600 Radio Wiring Diagram
The larger 10-pin connector handles primary power, ground, and the front audio channels. Gray Pin 2 (Front Left Speaker +): White Provide your vehicle year, model, and whether it