I just mounted the Watt Meter today and though the Xantrex Complete Charge Controller is not yet hooked up to the batteries, I did connect the Watt Meter Load wires to the batteries. Unfortunately, the 30Amp In-line automotive fuse blew immediately. Twice. I don't have a clue as to why this happened. Below is a photo of the interior wiring which is wired according to the directions. Any ideas why the Watt Meter is blowing fuses?