Hey guys, I know I’m over thinking this but can’t wrap my head around making this work. I’m looking at a very simple set up. For now I’m staying single battery because I will only be running a soundbar and couple led strip lights. What I am wanting to do is use the 5 switch panel (currently I won’t be using them all). I’d like to link everything together so there is a master switch that powers everything else. This would include the usb, cig,volt merger and 2 of the switches to run the radio and lights. I assume if I didn’t do this the voltmeter would constantly drain the battery? I know there is a key on option. Am I better doing that so then the panel only has power with key on? I would like in rare occasions to run the radio without having to have the key on. So I guess main question is, is there a simple way to wire this up where switch 1 is for main power and the others are for radio and lights. And the chargers and volt meter come on after master is on?