Auxiliary Lights

Stupid question but if your parked in an area for the night and it would be best to have your aux lights on should you idle all night or can you turn it off?

There should be no need to idle the truck. If your markers kill your batteries in the ten hours you're parked, there's a problem. Note: headlights are a different story. Make sure you turn them off (the truck usually won't shut up until you do, anyway).

And the only stupid questions are the ones you don't ask. :)

I've usually left mine on while sitting, too. Never had any issues starting it up the next day.