Guys, I need your guys' help as my dad's 97 won't start. I am pretty sure it is something simple, but I haven't found it. For some reason, the cruiser won't start untill I pass current from another vehicle. My battery charger won't start it, it's just jumping it from another vehicle. Both of the batteries are dead-no charge. So we figured the alternater was bad, we replaced the brushes and still no go. As I turn the key to the on position, it does not even make a sound. I put on the battery charger, and all you here is the starter working. Lastly, I jump it with jumper cables, and the cruiser strarts right up as mentioned before. Any input, fuses I should check?