Wire colors can change between model years, and previous owners may have altered the wiring. Always to confirm the function of each wire before making any connections. This is especially important for power (12V constant), ground, and accessory (switched) wires.
Reverse Trigger Signal – Tells the radio to display the backup camera when shifted into reverse. Pin 17 (SW1 / Violet): Steering Wheel Control Signal 1. Pin 18 (SW2 / Yellow): Steering Wheel Control Signal 2.
Sends the positive audio signal to the front passenger-side speaker. Toyota 08600 Radio Wiring Diagram
Test the with the key completely out of the ignition. It must read ~12.6V.
The 10-pin plug is the primary connector required to get the radio to turn on and play music through the front doors. Pin Number Standard Toyota Wire Color Function / Label Description Accessory (ACC) +12V Power when ignition is in 'ACC' or 'ON' Pin 2 Blue / Yellow Constant Battery (12V+) Continuous power for memory/clock Pin 3 Dark Green Front Left Speaker (+) Positive terminal for front driver-side speaker Pin 4 Front Right Speaker (+) Positive terminal for front passenger-side speaker Pin 5 White / Black Ground (GND) Chassis ground connection Pin 6 Illumination (+) Dims radio display when headlights turn on Pin 7 Power Antenna / Amp Turn-on Sends a 12V signal to raise antenna or boot factory amp Pin 8 Front Left Speaker (-) Negative terminal for front driver-side speaker Pin 9 Front Right Speaker (-) Negative terminal for front passenger-side speaker Pin 10 Blank / Varying Unused / Dimmer Often left empty on standard setups 3. Standard 6-Pin Rear Speaker Pinout Wire colors can change between model years, and
Do the radio buttons dim when you turn on the vehicle's headlights? Troubleshooting Common Wiring Issues
This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later. Reverse Trigger Signal – Tells the radio to
Often dedicated to the factory 3.5mm Auxiliary jack input (Aux Audio Left, Aux Audio Right, and Aux Ground). The 28-Pin Multi-Function Layout