Everything is wired up in the speakers but it's just not working

Antennae wire and other wires for the stock stereo are listed below:
1995 Buick LeSabre Stock Radio Wiring Diagram
Car Radio Constant 12V+ Wire: Orange
Car Radio Ignition Switched 12V+ Wire: Yellow
Car Radio Ground Wire: Black/White
Stereo Radio Illumination Wire: Gray/Black
Stereo Radio Dimmer Wire: Brown/White
Stereo Radio Antenna Trigger Wire: Dark Green
Stereo Radio Amplifier Trigger Wire: N/A
Front Speakers Size: 5 1/4? Speakers
Front Speakers Location: Doors
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: 6? x 9? Speakers
Rear Speakers Location: Rear Deck
Left Rear Speaker Wire (+): Brown
Left Rear Speaker Wire (-): Yellow
Right Rear Speaker Wire (+): Dark Blue
Right Rear Speaker Wire (-): Light Blue

To eliminate wiring issue take good speaker and hook it up directly to the left front output - if it does not work then that amp is blown. Period.

Hi there:
Check this on 2005 Chevrolet Trailblazer Car Stereo Wiring Chart...

Car Radio Battery 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: N/A
Car Stereo Dimmer Wire: N/A
Car Stereo Antenna Trigger Wire: N/A
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 (+): Tan
Left Front Speaker Negative Wire (-): Gray
Right Front Speaker Positive Wire (+): Light Green
Right Front Speaker Negative Wire (-): Dark Green
Car Audio Rear Speakers Size: N/A
Car Audio 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

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Reconnect all the wirings of the speaker set. Left and Right sound connectors from the subwoofer properly.

check speakers and speaker wire and connections with a multimeter

connect one speaker at a time .If one speaker or speaker wire is bad it will cause all audio to mute.connect one speaker at a time

speakers could be broken, one or more of the wires could be broken (inside)

First, rule out problems with the wiring to the speakers. Disconnect the speaker wires to the amp. Get a AAA battery. Hold one of the wires to the negative side of the battery and lightly grace the other wire across the positive side. You should be able to hear something like pops and scratches coming from the speakers. Do this for all the speaker wires and wire-tie each pair.

I figured out the problem, the front right tweeter wire was pinched behind the mounting bracket. everything is now working perfectly.

MAKE SURE NO SPEAKER WIRES ARE TOUCHIN THE OTHER, IF DONT WORK.. YOU WILL NEED TO TOUCH TWO WIRE AT A TIME, DID YOU HEAR SOUND BE4 INSTALLING