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Note: Always verify colors with a multimeter, as production years vary. Sony Vegas 4.0 Serial Number Apr 2026
| Pin | Function | Typical Wire Color | Notes | | :--- | :--- | :--- | :--- | | | LF Speaker + | | | | A2 | LF Speaker - | | | | A3 | RF Speaker + | | | | A4 | RF Speaker - | | | | A5 | LR Speaker + | | Connect to Amp/Sub | | A6 | LR Speaker - | | Connect to Amp/Sub | | A7 | RR Speaker + | | | | A8 | RR Speaker - | | | | A9 | Ignition (ACC) | Yellow | 12V only when key is turned. | | A10 | Constant 12V (+) | Red | Always hot (Memory keep). | | A17 | Ground (GND) | Black | Chassis ground. | | A18 | Illumination | Grey/White | Dimmer signal (+12V when lights on). | | A19 | Power Antenna / Amp Turn-on | Blue | Triggers external amp (if Bose). |