I am trying to wire some driving lights to my Jon boat. I understand everything except where I am supposed to ground the two wires that come off of the back of each individual light as well as where I run the ground wire that comes off the back of the switch. I have been told not to attach the grounds to the boat itself, but I don't know what else to do. Is there any diagram that can show me how or does anyone have any advice. I am new to this so I appreciate all the help.