Nissan sentra 1996 wont start but lights and radio are running

Check out this article it might help car wont start no clicking sound.

I had the same similar situation not to long ago....I thought it was the starter so i took the starter completely out and had it tested which i found out later i could have it tested while it was still in the vehicle...;) Anyways it said my starter was good...My car radio, lights, and everything electrical came up fine...but when i tried to crank my car nothing would happen...no noise whats so ever...I found out that there is a button behind the clutch pedal....you gotta kinda lay down where you put your feet and look up there is a button that suppose to push in when you push the clutch in and it engages some kinda of saftey switch to ensure the the vehicle is not in gear....it cranks up perfect after that i just glued some plastic piece on it to make sure the button is being pushed when i put in the clutch......PS Of course this will only be the issue for Manual Transmission

2 possible problems I can think of, you have a dead spot on the starter so sometimes it starts next time it doesn't. Turn on the lights and have someone watch them as you try to start the car if the lights go dim could be the starter. Second the battery has a short in it or a bad cell in it, there is enough power to turn on the lights but not start the car. Have the battery tested or borrow one to try.