...keep re-configuring your wiring connections for as long as you have fuses to blow! Lol. I hope everybody knows that's meant as a joke. Well, sort of. I recently posted that I reconnected the OEM 12v cigarette plug so that, if needed, I could use my 150w inverter. Well, in all the digging around in the camper I found a multi 12v outlet, usb charger, and voltmeter unit. I thought it might be nice to install it in place of the OEM cigarette plug as it had the additional usb charging, but I didn't need or want the voltmeter since I had one on the opposite side of the camper. What I did want was to replace the voltmeter with an on/off (rocker) switch in order to avoid trickle power loss (can't remember the actual electrical term right now). Anyhow, the switch I ordered didn't come with wiring directions but I thought I'd check the 'net and I'd be okay. The directions I found showed both the power and negative wires being connected and then daisy chained from there to the other loads. Well, long story short but four fuses later, it finally occurred to me that I was looking to use this switch in the same way that I use the battery cut off switch I recently installed, and I remembered that I had the positive (power) wire connected to the input side of the switch, and the loads connected to the output side of the switch. There was no ground/negative connection to or from the switch. So, after having given up for the umpteenth time, I trekked back out to the camper and rewired the on/off switch so that power was connected to one wire going in and the other wire coming from the switch will power, or cut power to, the "loads." This was a long, long day.