Car speaker installation

2003 Chevy Silverado 1500 Car Radio Wiring Diagram

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2003 Chevy Silverado 1500 Radio Wiring Diagram ; Rear Speakers Depth, 2 1/2? ; Rear Speakers Location, N/A ; Left Rear Speaker Wire (+), Brown ; Left Rear Speaker ...

2003 Chevy Silverado 1500 Car Radio Wiring Diagram

https://www.modifiedlife.com > 2003-chevy-silverado-...
2003 Chevy Silverado 1500 Radio Wiring Diagram ; Rear Speakers Depth, 2 1/2? ; Rear Speakers Location, N/A ; Left Rear Speaker Wire (+), Brown ; Left Rear Speaker ...

How To Chevy Silverado Stereo Wiring Diagram - My Pro Street

https://my.prostreetonline.com > 2016/01/13 > how-to-...
Jan 13, 2016 - Use this Chevy Silverado Stereo Wiring schematic to install an aftermarket stereo or factory radio into your Chevy truck.

2003 Silverado dash wiring diagram? - GMC Truck Forum

https://www.gmfullsize.com > ... > Audio & Electronics
Feb 14, 2010 - Run a wire to the fusebox for switched power. Car Radio Ground Wire: Black/White Car Radio Illumination Wire: Gray Car Stereo Dimmer Wire: Brown

Question edited for clarity.
Question moved from MISC to model category.

Aftermarket ideas
https://www.google.com/search?q=2003+Chevy+Avalanche+stereo

Here is the factory wiring diagram.

2003 Chevrolet Avalanche Car Radio Wiring Diagram

https://www.modifiedlife.com > 2003-chevrolet-avalanc...
Nov 17, 2011 - 2003 Chevrolet Avalanche Speaker Wiring Guide ; Left Front Speaker Negative Wire (-), Gray ; Right Front Speaker Positive Wire (+), Light Green.

2004 Chevrolet Silverado March 31st, 2012
Posted in Chevrolet Silverado

2004 Chevrolet Silverado Stereo Wiring Information

Radio Constant 12V+ Wire: Orange
Radio Ignition Switched 12V+ Wire: Class 2 Serial Data
Radio Ground Wire: Black/White
Radio Amplifier Trigger Wire: Pink
Left Front Speaker Wire (+): Tan
Left Front Speaker Wire (-): Gray
Right Front Speaker Wire (+): Light Green
Right Front Speaker Wire (-): Dark Green
Left Rear Speaker Wire (+): Brown
Left Rear Speaker Wire (-): Yellow
Right Rear Speaker Wire (+): Dark Blue
Right Rear Speaker Wire (-): Light Blue

2004 Chevrolet Silverado Speaker Sizes
Audio Front Speakers Size: 6.5?
Back Speakers Size: 4? x 6?

The following information is currently not available:
Radio Illumination Dimmer Wire
Radio Antenna Trigger Wire
Front Speakers Size
Rear Speakers Size

https://www.google.com/search?q=2004+Chevy+LS+2500+radio+wiring

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Depending on the model, the Silverado may have an amplifier between the OEM radio and the speakers. If that is the case, you will have to remove it and wire directly to the speakers. Check the wiring schematics for the original truck radio option (one source is Alldatadiy.com).

I need to know the positive and negative speaker wires for the door speakers in my 1999 ford expedition xlt. Can anyone help please?

2003 Chevrolet Tracker Car Stereo Wiring Diagram
Car Radio Battery Constant 12v+ Wire: White
Car Radio Accessory Switched 12v+ Wire: White/Black
Car Radio Ground Wire: Black
Car Radio Illumination Wire: Red/Yellow
Car Stereo Dimmer Wire: Red/Green
Car Stereo Antenna Trigger Wire: Pink
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
Left Front Speaker Negative Wire (-): Black/Blue
Right Front Speaker Positive Wire (+): Blue
Right Front Speaker Negative Wire (-): White/Red
Car Audio Rear Speakers Size: N/A
Car Audio Rear Speakers Location: N/A
Left Rear Speaker Positive Wire (+): Light Green
Left Rear Speaker Negative Wire (-): Light Green/Black
Right Rear Speaker Positive Wire (+): Gray
Right Rear Speaker Negative Wire (-): Gray/Black

pls rate

With component speakers it is imperative that both the speakers be hooked up to the supplied crossover. Wiring them in series or parallel will not yeild satisfactory results since the woofer requires lower freequency then the tweeter, which plays the high notes.

Now some cheaper speakers do not use crossovers and sound rather poor. What make and model of speaker are installing? Does you truck already have component speakers in it?

Cheers,

Left Front Speaker(+) TAN ; Size: Left Front Speaker(-) GRAY ; Size: Right Front Speaker(+) L GREEN ; Size: Right Front Speaker(-) D GREEN ; Size: Left Rear Speaker(+) BROWN ; Size: Left Rear Speaker(-) YELLOW ; Size: Right Rear Speaker(+) BLUE ; Size: Right Rear Speaker(-) LT BLUE

Yellow -ignition
Orange-Constant +12 volts
Black - ground


If you need more info, please ask.
A rating is appreciated.

You could get a stereo installation kit for your year, make & model, that comes with a pigtail plug that would plug right into the existing harness plug and prevent you from having to hack up your original wiring harness.

If not....

Car Radio memory Constant 12v+ Wire: Orange
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/White
Car Radio Illumination Wire: Gray
Car Stereo Dimmer Wire: Brown
Car Stereo Antenna Trigger Wire: Pink
Car Stereo Amp Trigger Wire: 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
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

Good luck
Aduz