No sound
 

I have a 2003 Chrysler Sebring put a new stereo in it work for a while all the sudden I disconnected battery and now no sound

When you reconnected the battery, did you test for a voltage right at the stereo? IOW, make sure you are getting an electrical connection all the way to the stereo. If it's dead there, check the fuse for starters.

First thing to always check with radio problems is to make sure that ALL the connectors at the rear are fully pushed in