Hardwiring automatic bed lights into 2018 Silverado

[dinsky]

Hello..

I want to add some automatic bed lights with a pin switch to my Silverado. I have a couple questions. One, can I splice into power from my trailer harness? will that be constant power? or do I need to run a wire from the batt? Ill attach the diagram i am going to try to follow from another forum. Will this pin switch work for this setup? I know there would only the the one wire going to the bottom of the spdt switch. https://www.amazon.com/DaierTek-Flange-Switch-Nickel-Universal/dp/B081MTFTDL/ref=sr_1_1?dchild=1&keywords=pin+switch&qid=1602912204&sr=8-1 also, if I can splice into power from the trailer harness then do I still need an inline fuse?

thanks for the help. I just got my first truck about a month ago

[superdave160]

See this thread.  The connector for factory bed lights is under the bed near the rear bumper.  You can purchase a harness so that they come on when the bed light on the back of the cab comes on.  You can also go one step further to connect the bed lights to the reverse lights using a diode so that the bed lights are on when the reverse lights come on.  If it is dark outside, and you unlock the doors, the reverse lights come on.  That makes your key fob the switch for the bed lights.