I put some in my dads and have a bunch waiting to be put in my girlfriends truck
They both use their beds and haul often as well
For my dads 11 big horn i just taped into the 12v acces. on the 7 pin hitch plug, quick spliced a mini blade fuse holder in and ran it up through the stake post to a waterproof switch in his bedliner (found here:
12VDC ON/OFF Switches Specifications) The sitch is very low profile and seems pretty durable
From the switch I ran 4 10" cheap ebay strips in parrallel and double sided taped them to the side of the bed
I thought about taping into the cargo lights but this way seems the simplest and most convenient
Pretty much the same plan for my girlfriends truck only I have 2-2ft strips for the bed rails and a 4ft strip for inside the lid of the toolbox