I was going over the instructions and they state. When selecting a 12v key on source, try to find a dedicated circuit with 25 amp fuse. Any suggestions. Wiring is not one of my best subject.

 

I just wired my 12 V source into the cigarette lighter fuse by lifting up the fuse box in the engine compartment and tapping into the appropriate wire underneath it. This was easier than trying to remove the dash panel for me. There is another thread on this exact same thing from a couple days ago.