March 6, 2012 1:04 PM PST
You really do want:
1. A dedicated fuse in the wiring, w/ all the wonderful, gee-whiz electronics you don't want to chance frying something expensive
2. A relay wired into the headlight wires. - It might happen that you could be way, way out in the toolies & forget to turn your running lights off & end up asking picnickers, in the middle of summer, if they have jumper cables which of course they don't. - Not that this ever actually happened.