I installed the scorpio alarm today. All I can say is that was alot easier than I thought. I put the "brain" on the right side of the trunk, then I put the kill box and the proxcimity (??spelling??) under the seat. I hooked up the battery and it works good and the range is awesome on it. I walked almost a full block away and I could still arm and disarm it. Then sensor is awesome, I would set the alarm and then walk by the bike (about 3 feet away) and it would chirp like crazy. Real cool mod for the busa. Oh and did I mention the install was really easy.