The light in my radio comes on but the radio want play

Wiring issue. Too bad some else has messed with the wiring. Be sure to check ALL the fuses first. The non-OEM radio connectors may have been installed wrong also. Solving problems like this requires you to be a good machanic AND a good detective...
GOod Luck.

could be the speaker out put has come loose at back of radio as to have all speakers blow at once is just to much of a coincedence so pop the radio out and check wiring connentors if all ok looks likely the radio is needing replacing

a loose battery connention.

Some cars radio's will "lock" whenever they are disconnected from power. It is a safety feature to prevent theft. I'm not very familiar with this type of system, but I know that there is some sort of "unlock" code that must be used. I would try to call a local dealership or use good ol' google to find out more info on it.

A few checks here,,, if the vehicle was otherwise in good working order prior to battery exchange , check that all the "+" cables are connected securely to the battery positibe post. it's unlikely to be the Negative post. Check heavy cable from starter motor is securely connected also. check "nuteral" inhibitor switch on transmission is operational ! Good luck

check fuse block for shorts, melting discoloring,on back side of fuse panel around starter relay. loose connection causes fuse block to over heat will need to be replaced.hope this helps.

haha thats a wiring problem. could even be a fuse not being pushed in all the way. i would check the remote start wire and the battery wire and also the ground wire where its plugged in the back of the radio

if the fuse to the radio is ok. i would suspect the radio is no good. i have replaced several in sentras!!

the radio has to go to the shop to get fix dont pull it or you will set a code on the radio

Sounds like you had a fuse go out.
If you can provide some additional information on your vehicle, we might be able to provide the information on which fuse it could be.