Hey guys,<br />I just got my trolling motor for my new pontoon. I was flipping through the manual for installation instructions, and saw a small section about establishing a common ground. I am planning on using the Trolling motor batteries (this is a 24v system) for the trolling motor only and physically isolating them completely. All other accessories (radio and depth finder) will be run off the main battery. Do I need to establish this common ground? And if I do, what does this mean and how do I do it?. I am planning on installing the trolling batteries under one of the front bench seats. The main battery is in the back of the boat. THe manual is rather vague regarding this issue. <br /><br />Thanks<br /><br />Mac