Mike, check out this link
http://www.wakeworld.com/MB/Discus/messages/3183/285896.html I just installed one on my boat. I put the screen on the lower left side of the dash and the toggle on the lower right side. I like to drive with my left hand so having the toggle on the right made more sense. I would put it in a place that might be a little more protected from the sun and water. It will be interesting to see how it holds up when it gets a little wet.