I created a buss off the battery that was controlled by a relay, I triggered the relay off the same wire Honda tells you to tie into for the factory aux panel.
It is included in the install instructions for the AUX panel.
I also used the 12V Plug in (White Wire Hot) I went to Home Depot and pick up some Splice Tap Connectors don't have to cut wires made this a simple operation just tape when done. Here put this number in the search on EBAY 271112154353 these will be easier just bought some. NO MORE CUTTING INVOLVED!!!