Replace rear speakers in a 2004 Cavalier

fixing rear rear glass or wind shield you need special fast setting adhesive caulk materials and some tools at the auto parts stores.this job best for body shop to fix.

Did you connect the battery backwards? If so, you probably blew some fuses or fried your instrument cluster.

make sure you have brake fluid in the reservoir, make sure the bleeder bolt is loosened 1/4 to 1/2 turn (be careful, they are easily damaged, trust me) also have the engine running when you bleed it, then you have the brake booster assisting you. if you need more help go ahead and ask.

-Spenser

Here is the color code. Will that do or do you need more?
2000 Chevrolet Cavalier Car Stereo Radio Wiring Diagram
Car Radio Constant 12v+ Wire: Orange
Car Radio Switched 12v+ Wire: Ignition Switch (The radio harness does not provide a switched power source. Run a wire from the Ignition Switch.)
Car Radio Ground Wire: Black
Car Radio Illumination Wire: Gray
Car Stereo Dimmer Wire: N/A
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

You have to remove the back "deck" from inside the car

the front door speakers you have to pull the front door panels off, and as for the rear speakers you have to take the top of the rear dash off and can get to them from in the trunk but the topd of the rear being off also helps

if your truck has bose the you probably blew the bose amp and will need to bypass it now to prevent speakers from making noise.

here are the wire colors and what they do, that is all I have.

2000 Chevrolet Cavalier Car Stereo Radio Wiring Diagram
Car Radio Constant 12v+ Wire: Orange
Car Radio Switched 12v+ Wire: Ignition Switch (The radio harness does not provide a switched power source. Run a wire from the Ignition Switch.)
Car Radio Ground Wire: Black
Car Radio Illumination Wire: Gray
Car Stereo Dimmer Wire: N/A
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

This is an amp problem but you also need to confirm that there are no burnt wires and cut fuses.

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Need to monitor rear HO2 sensor operation. Possible bad rear O2 sensor or failed catalytic converter