ok if i tap into an existing wire in the cabin to get power for my gauges, do i need to get a resistor or somethign? since I = V/R, and (R) in a parallel circuit (which is what it would become if i split the wire, right?) is inversed, ie now the ohmage is = 1/R.
if i'm right about this, then wouldn't i have to keep going to the positive end of my battery and be continuously adding wires to it to get power? that would sure make things cluttered