I have a 1986 Evinrude 40 HP. One day as I went to launch the boat, my battery finally died. Being determined to launch the boat my friend and I ran to the truck and pulled out the truck battery. I started the boat fine and everything was okay. As we were cruising to our destination we decided to remove the truck battery and swap back the dead battery in hopes it would charge it up. As soon as the terminals were lifted from the battery the alarm started to sound. I put the dead battery under the terminals and the alarm kept sounding. So, I put the truck battery back under the terminals and the alarm kept sounding. The alarm has been sounding since then which has been 2 months. Ive asked several people and they all tell me to disconnect the brown wire, since it used to be a VRO, but the wire has been disconnected along time ago. The boat runs great, except that annoying constant alarm coming from the controls....ANY SUGGESTIONS PLEASE!?!?