My 1987 Chevrolet El Camino has been in storage all winter. It has been hooked up to a battery tender for most of it and I started almost every week. The past two Winters there has been mice in the car although no signs of them are currently present. Today, I turned the key in the ignition to start it, I heard a tick, then nothing. I tried several more times and got no response at all. I know it is not the battery, but have no further clues. Please help! Thanks in advance.