parked at the gas station to pump gas, left the a/c and stereo on. Tried to turn the engine on, but it wouldn't start. Don't think its the battery because the headlights and stereo are still on and working. What can it be? A friend says it can be my starter...any suggestions on finding out whats the problem?

 

need more info, year, symptoms? what happens when you try, any noises, anything else recently that happend that is not normal?

Post all the info you can so we have a better idea of whats going on