take pics of your speaker wire connections. we need to see how you make connections first. i suspect your connections are giving you issues.
next, you can buy a Haynes manual and it will give you necessary wiring diagrams and colors.
do you have a factory or aftermarket head unit? did you use a wire harness adapter for the HU or did you cut factory wires? do you know the wire color codes? did you have a premium system and did you bypass the factory amplifier (if applicable)?
1996 Chrysler Concorde Car Audio Wire Diagram
Car Radio Battery Constant 12v+ Wire: Pink
Car Radio Accessory Switched 12v+ Wire: Red/White
Car Radio Ground Wire: Chassis or Back Strap
Car Radio Illumination Wire: N/A
Car Stereo Dimmer Wire: Orange
Car Stereo Antenna Trigger Wire: Orange/Red
Car Stereo Amp Trigger Wire: N/A
Car Stereo Amplifier Location: N/A
Left Front Speaker Positive Wire (+): Dark Green
Left Front Speaker Negative Wire (-): Brown/Red
Right Front Speaker Positive Wire (+): Purple
Right Front Speaker Negative Wire (-): Dark Blue/Red
Left Rear Speaker Positive Wire (+): Brown/Yellow
Left Rear Speaker Negative Wire (-): Brown/Light Blue
Right Rear Speaker Positive Wire (+): Dark Blue/White
Right Rear Speaker Negative Wire (-): Dark Blue/Orange
