My Cig fuse (fuse #13) already has a few things on it. Im wondering what other fuses are good to use for gauges? and a dash cam that runs 24/7.

 

What about the empty slots? They dont have power? did you try them? I know in some cars the empty fuse slots still have power. What about wiring it to a dome fuse and wire a on and off switch that way you can have constant power only if you like..?