Radio Wiring Diagram and Car Stereo Wire Diagram – 2004 Oldsmobile Alero

Whether your an expert installer or a novice enthusiast with a 2004 Oldsmobile Alero, an automotive wiring diagram can save yourself time and headaches. One of the most time consuming tasks with installing a car stereo, car radio, car speakers, car amplifier, car navigation or any mobile electronics is identifying the correct radio wire colors for a 2004 Oldsmobile Alero.

The Modified Life staff has put their heads together to create an invaluable resource containing free car stereo wiring diagram, free car wiring diagram and free radio wiring diagram. Feel free to use any car stereo wiring diagram or car radio wire colors that are listed on Modified Life but keep in mind that all information here is provided “as is” without any warranty of any kind and most diagrams listed on our site are submitted by our Modified Life community. Use of the wiring information is at your own risk. Always verify all radio wires, wire colors and wiring diagrams before applying any information found here to your 2004 Oldsmobile Alero.

If you can’t find your car radio wiring diagram, factory radio wire colors or stereo wire diagram on Modified Life, please feel free to post a car wiring diagram request (Radio Wiring Diagram Request Page) and we’ll do our best to find you the information you need for your mobile installation.

If you would like to help the Modified Life community by adding a car radio wiring diagrams or car stereo wiring diagrams to our resource, please feel free to email us using our contact form.

2004 Oldsmobile Alero Car Stereo Radio Wiring Diagram

Radio Constant 12V+ Wire: Orange
Radio Ignition Switched 12V+ Wire: (Class 2 Data)
Radio Ground Wire: Black/White
Radio Illumination Wire: N/A
Radio Antenna Trigger Wire: Dark Green
Radio Amplifier Trigger Wire: N/A
Front Speakers Size: N/A
Front Speakers Location: N/A
Left Front Speaker Wire (+): Tan
Left Front Speaker Wire (-): Gray
Right Front Speaker Wire (+): Light Green
Right Front Speaker Wire (-): Dark Green
Rear Speakers Size: N/A
Rear Speakers Location: N/A
Left Rear Speaker Wire (+): Brown
Left Rear Speaker Wire (-): Yellow
Right Rear Speaker Wire (+): Dark Blue
Right Rear Speaker Wire (-): Light Blue

Notes: If equipped, the amplifier is located on the driver side of the trunk.

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