OK I was working on my car it's a 89 nissan 240sx and was about to start it. So I tried starting it and nothing happened it just keep trying to turn over. I then stopped trying and was going to jump the car to see if it was the battery or something and then something popped and the car will not receive power. I have no idea what could be wrong with it I've even tried a different battery and still has the same problem. If you could help me out with this or give me some form of help I would be very grateful