I have a 98 sportster that wont start. When I put the key on, I hear two beeps. When I press the start button, it is beeping like a garbage truck backing up. It's not the same beep you get when it is in gear and you try to start it. Earlier, it wasn't making any noise at all when I tried to start the engine. All I would hear was a single click from the computer. If I unplugged the key, I could hear the computer click again. However, I'm not hearing any solenoid noises at all. I've checked all of the fuses. Any suggestions on what to try next? What does the alarming beep mean?