Question about 2004 Chevrolet TrailBlazer

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I need to know how to remove rear door panel so that i can replace factory speaker on a 2004 trailblazer. Also what size speaker will replace it.

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On the inside trim, you can remove screws that are by the door handle, arm rest, under door and side of door and then gently pull back on the panel as there will also be retaining clips attached and you don't want to break them. You'll need to lift the door panel upwards in order to get it off the window ledge. Then you'll need to manipulate the panel and disconnect the door handle linkage from the door handle and disconnect the wiring for your controls. I don't know what speaker you'll actually need.

Posted on Sep 23, 2009

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1 Answer

Rain got into my truck window now my speakers has stopped working...what should i do?


Could have damaged the speakers or the radio or both.
You could pull a door panel and connect a small used speaker to see if the radio is producing a feed to the door.

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2004 Chevrolet Trailblazer Car Stereo Radio Wiring Diagram
Car Radio Constant 12v+ Wire: Orange
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Car Radio Illumination Wire: Gray
Car Stereo Dimmer Wire: Brown
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Left Front Speaker Negative Wire (-): Gray
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Right Front Speaker Negative Wire (-): Dark Green
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Left Rear Speaker Positive Wire (+): Brown
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2004 Chevrolet Trailblazer Car Stereo Radio Wiring Diagram
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: Brown
Car Stereo Antenna Trigger: Pink
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

pls rate

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1 Answer

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This is a partial solution to let you know that the door panels for both the front and rear speakers have to be removed,, See repair manual for removing the door panels

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