Delphi Dea500 Radio Wiring Diagram | TOP — METHOD |

| Pin # | Wire Color (Typical) | Function | Description | | :--- | :--- | :--- | :--- | | | Orange | Switched Power (Acc) | +12V/24V input when the ignition key is turned to "ON" or "ACC". | | 2 | Yellow | Battery Constant | +12V/24V direct from the battery. Presets memory and clock. | | 3 | Black | Ground | Chassis ground / Negative terminal. | | 4 | Grey | Right Front Speaker (+) | Positive lead for the Right Front speaker. | | 5 | Grey/Black | Right Front Speaker (–) | Negative lead for the Right Front speaker. | | 6 | White | Left Front Speaker (+) | Positive lead for the Left Front speaker. | | 7 | White/Black | Left Front Speaker (–) | Negative lead for the Left Front speaker. | | 8 | Green | Left Rear Speaker (+) | Positive lead for the Left Rear speaker. | | 9 | Green/Black | Left Rear Speaker (–) | Negative lead for the Left Rear speaker. | | 10 | Purple | Right Rear Speaker (+) | Positive lead for the Right Rear speaker. | | 11 | Purple/Black | Right Rear Speaker (–) | Negative lead for the Right Rear speaker. | | 12 | Blue | Power Antenna / Amp Turn On | Sends +12V signal when the radio is on (to raise antenna or turn on external amplifier). | | 13 | (Varies) | Illumination / Dimmer | Often connects to the dashboard light circuit to dim the radio display at night. |