Green is typically used for ground. On most modern vehicles the chassis is ground and the negative post of the battery connects to ground. If you really want to be sure, check the installation instructions that should have come with your speakers.
CAR AUDIO FRONT SPAEKERS LOCATION: DOORS LEFT FRONT SPEAKER POSITIVE (+) WIRE: TAN LEFT FRONT SPEAKER NEGATIVE(-) WIRE: GRAY RIGHT FRONT SPEAKER POSITIVE (+) WIRE: LIGHT GREEN RIGHT FRONT SPEAKER NEGATIVE (-) WIRE: DARK GREEN CAR AUDIO REAR SPEAKERS LOCATION:REAR DECK LEFT REAR SPEAKER POSITIVE (+) WIRE: BROWN LEFT REAR SPEAKER NEGATIVE (-) WIRE: YELLOW RIGHT REAR SPEAKER POSITIVE (+) WIRE: DARK BLUE RIGHT REAR SPEAKER NEGATIVE (-) WIRE: LIGHT BLUE
The positive speaker wire is a solid color, your negative wire should have a stripe on it.
Battery Constant 12v+ Wire: WhiteAccessory Switched 12v+ Wire: White/BlackGround Wire: BlackIllumination Wire: Red/YellowDimmer Wire: Red/GreenAntenna Trigger Wire: PinkLeft Front Speaker Positive Wire (+): WhiteLeft Front Speaker Negative Wire (-): Black/BlueRight Front Speaker Positive Wire (+): BlueRight Front Speaker Negative Wire (-): White/RedLeft Rear Speaker Positive Wire (+): Light GreenLeft Rear Speaker Negative Wire (-): Light Green/BlackRight Rear Speaker Positive Wire (+): GrayRight Rear Speaker Negative Wire (-): Gray/Black
Car Radio Battery Constant 12v+ Wire: Orange Car Radio Accessory Switched 12v+ Wire: Yellow Car Radio Ground Wire: Black Car Radio Illumination Wire: Brown Car Stereo Dimmer Wire: Gray Left Front Speaker Positive Wire (+): Tan Left Front Speaker Negative Wire (-): Gray Right Front Speaker Positive Wire (+): Light Green Right Front Speaker Negative Wire (-): Dark Green Left Rear Speaker Positive Wire (+): Brown Left Rear Speaker Negative Wire (-): Yellow Right Rear Speaker Positive Wire (+): Dark Blue Right Rear Speaker Negative Wire (-): Light Blue Car Radio Battery Constant 12v+ Wire: Orange Car Radio Accessory Switched 12v+ Wire: Yellow Car Radio Ground Wire: Black Car Radio Illumination Wire: Brown Car Stereo Dimmer Wire: Gray Left Front Speaker Positive Wire (+): Tan Left Front Speaker Negative Wire (-): Gray Right Front Speaker Positive Wire (+): Light Green Right Front Speaker Negative Wire (-): Dark Green Left Rear Speaker Positive Wire (+): Brown Left Rear Speaker Negative Wire (-): Yellow Right Rear Speaker Positive Wire (+): Dark Blue Right Rear Speaker Negative Wire (-): Light Blue
The positive speaker wire is red while the negative speaker wire is black on a 2008 pathfinder.
2005 Chevrolet Malibu Stereo Wiring Information Radio Battery Constant 12v+ Wire: Red/White Radio Ground Wire: Black/White or Black Stereo Antenna Trigger Wire: Pink Left Front Speaker Positive Wire (+): Tan Left Front Speaker Negative Wire (-): Gray Right Front Speaker Positive Wire (+): Light Green Right Front Speaker Negative Wire (-): Dark Green Left Rear Speaker Positive Wire (+): Brown Left Rear Speaker Negative Wire (-): Yellow Right Rear Speaker Positive Wire (+): Dark Blue Right Rear Speaker Negative Wire (-): Light Blue
Left Front Speaker Positive Wire (+): White/Red Left Front Speaker Negative Wire (-): Brown Right Front Speaker Positive Wire (+): Green Right Front Speaker Negative Wire (-): White/Orange
Car Radio Battery Constant 12v+ Wire: Orange Car Radio Accessory Switched 12v+ Wire: Yellow Car Radio Ground Wire: Black Car Radio Illumination Wire: Gray Car Stereo Dimmer Wire: Brown Left Front Speaker Positive Wire (+): Tan Left Front Speaker Negative Wire (-): Gray Right Front Speaker Positive Wire (+): Light Green Right Front Speaker Negative Wire (-): Dark Green Left Rear Speaker Positive Wire (+): Brown Left Rear Speaker Negative Wire (-): Yellow Right Rear Speaker Positive Wire (+): Dark Blue Right Rear Speaker Negative Wire (-): Light Blue
I found the pinout at http://www.installdr.com to be extremely helpful.The wire coloring (wiring diagram) for my 1997 Mazda Protege LX was as follows:Car Radio Battery Constant 12v+ Wire: Blue/RedCar Radio Accessory Switched 12v+ Wire: Pink/BlackCar Radio Ground Wire: Black/YellowLeft Front Speaker Positive Wire (+): Blue/OrangeLeft Front Speaker Negative Wire (-): Violet/WhiteRight Front Speaker Positive Wire (+): White/RedRight Front Speaker Negative Wire (-): Yellow/RedLeft Rear Speaker Positive Wire (+): OrangeLeft Rear Speaker Negative Wire (-): YellowRight Rear Speaker Positive Wire (+): Green/BlackRight Rear Speaker Negative Wire (-): Green/Orange
I found the pinout at http://www.installdr.com to be extremely helpful.The wire coloring (wiring diagram) for my 1997 Mazda Protege LX was as follows:Car Radio Battery Constant 12v+ Wire: Blue/RedCar Radio Accessory Switched 12v+ Wire: Pink/BlackCar Radio Ground Wire: Black/YellowLeft Front Speaker Positive Wire (+): Blue/OrangeLeft Front Speaker Negative Wire (-): Violet/WhiteRight Front Speaker Positive Wire (+): White/RedRight Front Speaker Negative Wire (-): Yellow/RedLeft Rear Speaker Positive Wire (+): OrangeLeft Rear Speaker Negative Wire (-): YellowRight Rear Speaker Positive Wire (+): Green/BlackRight Rear Speaker Negative Wire (-): Green/Orange
I found the pinout at http://www.installdr.com to be extremely helpful.The wire coloring (wiring diagram) for my 1997 Mazda Protege LX was as follows:Car Radio Battery Constant 12v+ Wire: Blue/RedCar Radio Accessory Switched 12v+ Wire: Pink/BlackCar Radio Ground Wire: Black/YellowLeft Front Speaker Positive Wire (+): Blue/OrangeLeft Front Speaker Negative Wire (-): Violet/WhiteRight Front Speaker Positive Wire (+): White/RedRight Front Speaker Negative Wire (-): Yellow/RedLeft Rear Speaker Positive Wire (+): OrangeLeft Rear Speaker Negative Wire (-): YellowRight Rear Speaker Positive Wire (+): Green/BlackRight Rear Speaker Negative Wire (-): Green/Orange
1999 Mitsubishi Mirage Car Stereo Wire DiagramCar Radio Battery Constant 12v+ Wire: Red/BlackCar Radio Accessory Switched 12v+ Wire: BlueCar Radio Ground Wire: ChassisCar Radio Illumination Wire: Green/WhiteCar Stereo Dimmer Wire: Black/YellowLeft Front Speaker Positive Wire (+): Red/WhiteLeft Front Speaker Negative Wire (-): Red/BlueRight Front Speaker Positive Wire (+): RedRight Front Speaker Negative Wire (-): BlueLeft Rear Speaker Positive Wire (+): Yellow/BrownLeft Rear Speaker Negative Wire (-): Yellow/RedRight Rear Speaker Positive Wire (+): Light GreenRight Rear Speaker Negative Wire (-): Yellow/Green