I have a 05 SCrew and am adding a power block for some accessories under the drivers side dash. I pulled the power off the trailer brake control (30A - great place to get power) but want it to switch off with the ignition. I have added a relay but need a switched source to control the relay. So far best I can tell is all the power at the fuse panel is not switched - can anyone verify that? If no switched sources at the fuse box, and recommendations on where I can grab a switched source to control the relay easily under the drivers side dash or close by?

 

There should be a couple of switched sources at the fuse panel. Try tacking down a radio lead or a wire to the wipers. This would give you the switched source your looking for. If you go to the wipers though be aware that taping the wrong lead could cause a glitch that may make them swipe once or twice when you first start the truck. It's strange, but it's happened to a couple people who have gone here for power.

Good luck!