so i have a general question. my car isn't starting and im not sure if its just the battery or the starter or what it is. when i turn the key the engine is not even turning over. the lights come on and everything else that runs off the battery is working fine, but the engine is not turning over at all. there is no sound at all when the key is turned, not even the clicking noise you normally hear. im not really sure whats going on here. any ideas???