Problem Installing 3 way dimmer

You have bought a 3 way dimmer switch. Do not use the blue wire if it is not going to be on a 3 way circuit. Just cap or tape off the wire with electrical tape. the green is the ground and the two blacks you have connnect to the black and red.

see connection colors below and let me know if you have questions.

2004 Nissan Sentra wire colors aftermarket radio wire colors

Car Radio Constant 12v+ Wire: Pink, yellow
Car Radio Switched 12v+ Wire: Blue, red
Car Radio Ground Wire: Gray, black
Car Radio Illumination Wire: Red/Green, N/A (tape off factory wire)
Car Stereo Dimmer Wire: Red/Yellow, N/A (tape off factory wire)
there is no factory amplifier wire, blue (tape off radio wire)
Left Front Speaker Positive Wire (+): Pink, white
Left Front Speaker Negative Wire (-): Blue, white/black
Right Front Speaker Positive Wire (+): White, gray
Right Front Speaker Negative Wire (-): Black, gray/black
Left Rear Speaker Positive Wire (+): Light Green, green
Left Rear Speaker Negative Wire (-): Violet, green/black
Right Rear Speaker Positive Wire (+): Blue, violet
Right Rear Speaker Negative Wire (-): Pink, violet/black

Most aftermarket cd players have the following wiring diagrams
(+)Red..............12v ignition
(+)Yellow...........12v battery (Memory) Constant Hot
(-)Black............12v Ground
(+)Blue.............12v Power antenna
(+)Blue/white.......12v Remote turn on
Orange...........Dashlight/dimmer
Orange/white.....Dashlight/dimmer
Orange/black.....Dashlight/dimmer
(+)White............Front left positive
(-)White/black......Front left negative
(+)Grey.............Front right positive
(-)Grey/black.......Front right negative
(+)Green............Rear left positive
(-)Green/black......Rear left negative
(+)Purple...........Rear right positive
(-)Purple/black.....Rear right negative

Hope this helps.

Maxima Wiring Diagram

1995-97 Nissan Maxima Stereo Wiring Constant 12V+ Pink/Blue Switched 12V+ Blue/Black Ground Vehicle Chassis Illumination Red/Blue Dimmer Red/Orange Antenna Trigger Black/Red Antenna Right Rear Front Speakers 6 1/2" Doors Left Front (+) Blue/White Left Front (-) Blue/Yellow Right Front (+) Brown Right Front (-) Brown/White Rear Speakers 6 1/2" Rear Deck Left Rear (+) Red Left Rear (-) Green Right Rear (+) Blue Right Rear (-) Pink


Diagram for any aftermarket head unit

Black: ground
Red: switched 12volt (accessory)
Yellow: 12v Constant
Orange: Illumination (Dimmer)
Blue: Remote
White & White/Black: +/- Front Left
Gray & Gray/Black: +/- Front Right
Green & Green/Black: +/- Rear Left
Purple & Purple/Black: +/- Rear Right

2000 Jeep Grand Cherokee Stereo Wiring Constant 12V+ Red/White Switched 12V+ White/Red Ground Black Illumination n/a Dimmer Orange Antenna Right Front Front Speakers 6" x 9" Doors Left Front (+) Light Green/Red Left Front (-) Light Green/Green Right Front (+) Light Blue/Red Right Front (-) Light Blue/Black Rear Speakers 6 1/2" Rear Door Left Rear (+) Dark Green/White Left Rear (-) White/Dark Green Right Rear (+) White/Purple Right Rear (-) Tan/Dark Green

CHeck HERE the 2001 diagram.

Hope helps (remember rated this).

2004 Subaru Outback Wagon Radio Stereo Wiring Diagram
Radio Battery Constant 12v+ Wire: Blue/Yellow
Radio Accessory Switched 12v+ Wire: Yellow/Red
Radio Ground Wire: Black
Radio Illumination Wire: Green
Stereo Dimmer Wire: N/A
Stereo Antenna Trigger: N/A
Stereo Amp Trigger Wire: N/A
Stereo Amplifier Location: N/A
Car Audio Front Speakers Size: N/A
Car Audio Front Speakers Location: N/A
Left Front Speaker Positive Wire (+): Brown/White
Left Front Speaker Negative Wire (-): Green/Black
Right Front Speaker Positive Wire (+): Red/Yellow
Right Front Speaker Negative Wire (-): White/Black
Car Audio Rear Speakers Size: N/A
Car Audio Rear Speakers Location: N/A
Left Rear Speaker Positive Wire (+): White/Red
Left Rear Speaker Negative Wire (-): Red/Green
Right Rear Speaker Positive Wire (+): Blue/Green
Right Rear Speaker Negative Wire (-): Red

yellow constant
red switch
black is ground
blue power antenna if any
dimmer i/illumination is optional

front- right-red/green-+
front-left-blue/green-+
rear-right-red/yellow-+
rear-left-blue/yellow-+

these are all the positive side wire for all your spkr

Radio Constant 12V+ Wire: White/Green
Radio Switched 12V+ Wire: Yellow/Red
Radio Ground Wire: Black
Radio Illumination Wire: Red/Black
Radio Dimmer Wire: n/a
Radio Antenna Trigger Wire: Yellow/Green
Left Front Speaker Wire (+): Green/Black
Left Front Speaker Wire (-): Light Green
Right Front Speaker Wire (+): Green/Yellow
Right Front Speaker Wire (-): Gray/Red
Left Rear Speaker Wire (+): Blue/White
Left Rear Speaker Wire (-): Blue/Black
Right Rear Speaker Wire (+): Pink
Right Rear Speaker Wire (-): Blue/Yellow

pls rate

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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