Need to determine whichcolor wires are for the speakers,the constant,switched.

Car Radio Constant 12v+ Wire: Orange
Car Radio Switched 12v+ Wire: Yellow
Car Radio Ground Wire: Black
Car Radio Illumination Wire: Gray
Car Stereo Dimmer Wire: N/A
Car Stereo Antenna Trigger: White
Car Stereo Amp Trigger Wire: N/A
Car Stereo Amplifier Location: N/A
Front Speakers Size: N/A
Front Speakers Location: N/A
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
Rear Speakers Size: N/A
Rear Speakers Location: N/A
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

1997 Chrysler Sebring Car Stereo Radio Wiring Diagram
Radio Constant 12V+ Wire: Red
Radio Ignition Switched 12V+ Wire: Blue
Radio Ground Wire: Black/Yellow
Radio Illumination Dimmer Wire: Green/Yellow
Left Front Speaker Wire (+): White/Blue
Left Front Speaker Wire (-): Black/Blue
Right Front Speaker Wire (+): White/Red
Right Front Speaker Wire (-): Black/Red
Left Rear Speaker Wire (+): Yellow/Blue
Left Rear Speaker Wire (-): Gray/Blue
Right Rear Speaker Wire (+): Yellow/Red
Right Rear Speaker Wire (-): Gray/Red

1985 Toyota Corolla Car Stereo Radio Wiring Diagram
Radio Constant 12V+ Wire: Blue/Yellow
Radio Switched 12V+ Wire: Gray
Radio Ground Wire: Brown
Radio Illumination Wire: Green
Left Front Speaker Wire (+): Pink
Left Front Speaker Wire (-): Purple
Right Front Speaker Wire (+): Light Green
Right Front Speaker Wire (-): Blue
Left Rear Speaker Wire (+): Black
Left Rear Speaker Wire (-): Yellow
Right Rear Speaker Wire (+): Red
Right Rear Speaker Wire (-): White

This is what my books show.
2009 Dodge Ram 2500 Car Radio Install Instructions
Car Radio Battery Constant 12v+ Wire: Gray/Red
Car Radio Accessory Switched 12v+ Wire: The radio harness does not provide a switched power source. Run a wire to the fusebox for switched power.
Car Radio Ground Wire: Black/Dark Green
Car Radio Illumination Wire: Orange/Dark Blue
Car Stereo Amp Trigger Wire: Dark Green/Red
Left Front Speaker Positive Wire (+): Dark Green
Left Front Speaker Negative Wire (-): Brown/Red
Right Front Speaker Positive Wire (+): Violet
Right Front Speaker Negative Wire (-): Dark Blue/Red
Left Rear Speaker Positive Wire (+): Brown/Yellow
Left Rear Speaker Negative Wire (-): Brown/Light Blue
Right Rear Speaker Positive Wire (+): Dark Blue/White
Right Rear Speaker Negative Wire (-): Dark Blue/Orange

For 1995 Ford Explorer Car Stereo check this Wiring Diagram...

Car Radio Constant 12v+ Wire: Green/Violet
Car Radio Switched 12v+ Wire: Yellow/Black
Car Radio Ground Wire: Black/Light Green
Car Radio Illumination Wire: Light Blue/Red
Car Stereo Dimmer Wire: N/A
Car Stereo Antenna Trigger: Orange/Blue
Car Stereo Amp Trigger Wire: Blue (If Equipped)
Car Stereo Amplifier Location: N/A
Front Speakers Size: N/A
Front Speakers Location: N/A
Left Front Speaker Positive Wire (+): Orange/Light Green
Left Front Speaker Negative Wire (-): Light Blue/White
Right Front Speaker Positive Wire (+): White/Light Green
Right Front Speaker Negative Wire (-): Dark Green/Orange
Rear Speakers Size: N/A
Rear Speakers Location: N/A
Left Rear Speaker Positive Wire (+): Gray/Light Blue
Left Rear Speaker Negative Wire (-): Tan/Yellow
Right Rear Speaker Positive Wire (+): Orange/Red
Right Rear Speaker Negative Wire (-): Brown/Pink

Good luck.

2003 Kia Spectra Car Stereo Wiring Color Codes
Car Radio Battery Constant 12v+ Wire: Pink
Car Radio Accessory Switched 12v+ Wire: Green
Car Radio Ground Wire: Black
Car Radio Illumination Wire: Red/Black
Car Stereo Dimmer Wire: N/A
Car Stereo Antenna Trigger Wire: N/A
Car Stereo Amp Trigger Wire: N/A
Car Stereo Amplifier Location: N/A
Car Audio Front Speakers Size: N/A
Car Audio Front Speakers Location: N/A
Left Front Speaker Positive Wire (+): White/Green
Left Front Speaker Negative Wire (-): White/Brown
Right Front Speaker Positive Wire (+): Yellow/White
Right Front Speaker Negative Wire (-): Yellow/Red
Car Audio Rear Speakers Size: N/A
Car Audio Rear Speakers Location: N/A
Left Rear Speaker Positive Wire (+): Brown/Black
Left Rear Speaker Negative Wire (-): Brown/Green
Right Rear Speaker Positive Wire (+): Light Green/Yellow
Right Rear Speaker Negative Wire (-): Ornage/Black

1991 Ford F150 Truck Car Stereo Wiring Schematic
Car Radio Battery Constant 12v+ Wire: Green/Yellow
Car Radio Accessory Switched 12v+ Wire: Yellow/Black
Car Radio Ground Wire: Red or Black
Car Radio Illumination Wire: Blue/Red
Car Stereo Dimmer Wire: N/A
Car Stereo Antenna Trigger: N/A
Car Stereo Amp Trigger Wire: N/A
Car Stereo Amplifier Location: N/A
Car Audio Front Speakers Size: N/A
Car Audio Front Speakers Location: N/A
Left Front Speaker Positive Wire (+): Orange/Green
Left Front Speaker Negative Wire (-): Black/White
Right Front Speaker Positive Wire (+): White/Green
Right Front Speaker Negative Wire (-): Black/White
Car Audio Rear Speakers Size: N/A
Car Audio Rear Speakers Location: N/A
Left Rear Speaker Positive Wire (+): Pink/Green
Left Rear Speaker Negative Wire (-): Pink/Blue
Right Rear Speaker Positive Wire (+): Pink/Blue
Right Rear Speaker Negative Wire (-): Green/Orange

This should help you with more then just the constant power wire, good luck.

Yellow wire on cd player is for memory and needs to be on constant voltage that doesn't shut off when car is turned off.

Here is the wiring diagram for the car:

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
Car Stereo Antenna Trigger Wire: Pink
Car Stereo Amp Trigger Wire: N/A
Car Stereo Amplifier Location: N/A
Car Audio Front Speakers Size: 5 1/4′
Car Audio Front Speakers 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 Size: 6′ x 9′
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

1992 Chevrolet Astro Car Stereo Wiring Diagram
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
Car Stereo Antenna Trigger Wire: N/A
Car Stereo Amp Trigger Wire: N/A
Car Stereo Amplifier Location: N/A
Car Audio Front Speakers Size: N/A
Car Audio Front Speakers Location: N/A
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 Size: N/A
Car Audio Rear Speakers Location: N/A
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

1997 Kia Sephia Car Stereo Radio Wiring Diagram
Car Radio Constant 12V+ Wire: Blue/Red
Car Radio Ignition Switched 12V+ Wire: Blue/Black
Car Radio Ground Wire: Black
Car Radio Illumination Wire: Red/Black
Car Radio Dimmer Wire: N/A
Car Radio Antenna Trigger Wire: N/A
Car Radio Amplifier Trigger Wire: N/A
Front Speakers Size: 4′
Front Speakers Location: Doors
Left Front Speaker Wire (+): Black/Yellow
Left Front Speaker Wire (-): Blue/Orange
Right Front Speaker Wire (+): Blue/Green
Right Front Speaker Wire (-): Light Green
Rear Speakers Size: 6 1/2′
Rear Speakers Location: Rear Deck
Left Rear Speaker Wire (+): Green/Red
Left Rear Speaker Wire (-): Green/Black
Right Rear Speaker Wire (+): Blue/White
Right Rear Speaker Wire (-): Red/Blue
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