Because of this variety, there is no one universal wiring diagram for all "86120" units, which is a common point of confusion. The crucial step is always to before starting any work.
Because the "86120" part number is actually a generic Toyota prefix for thousands of different radio models (e.g., 86120-02210, 86120-52490), finding the exact manual can be incredibly frustrating. Fortunately, Toyota standardized its wiring harnesses across almost all Fujitsu Ten non-amplified head units. manual toyota fujitsu ten 86120 wiring diagram
Never match wires solely by color. Match the aftermarket harness function to the factory pin location. Because of this variety, there is no one