There are 2 tiny shiny wet switch probes located on the very top of the puck. If your getting a new Mega 360, after unboxing it to install, make sure you wash, with a soft cloth and mild dish soap, the 2 shiny wet switch probes off as they may have been coated with a oil or something from the mfg. These have to be clean to turn the Mega 360 on and off as you either place in the water or take out of the water. Here is a link of my escapades from today and Wayne in the BBC Forum had the million dollar answer to my issues. Quite a day of trying everything imagable while floating on a lake trying to get my Mega 360 to work. And you can test everything at home sticking the Mega 360 into a Bucket of water to see if your installation works before traveling to a lake. Just a FYI!
Mega 360 issues!