The larger 10-pin connector handles primary power, ground, and the front audio channels. Gray Pin 2 (Front Left Speaker +): White
She had a brand new Bluetooth receiver in one hand and a wiring diagram she printed from a forum in the other. The problem? The forum's image was blurry, and half the color codes were washed out. Toyota 08600 Radio Wiring Diagram
This larger connector handles the primary power sources, ground, and the front audio channels. Toyota Wire Color (Typical) Aftermarket Color Front Right Speaker (+) Light Green Front Left Speaker (+) ACC (Switched +12V) Battery (Constant +12V) Blue / Yellow Front Right Speaker (-) Gray / Black Front Left Speaker (-) White / Black Ground (-) Brown or Black Power Antenna / Amp Turn-on Black / Red Mute / Unused Illumination / Dimmer Orange / White 6-Pin Rear Speaker Connector The larger 10-pin connector handles primary power, ground,
If you cannot find a pre-made harness, you can manually add to the original Toyota connector housing. Use pins sized 0.062" (1.5mm). The forum's image was blurry, and half the
Right Front (+) → Gray (Pin 1) Right Front (-) → Gray/Black (Pin 8)