Hey, I'm hoping someone on here can help me with a little electrical modification (sscully perhaps?). I want to add a set of Whelen Strip-lite LED compartment lights in the bed of my F150 that would be activated by a weatherproof switch in the bed. I have a tonneau cover and at night its almost impossible to see in the bed.

So could anyone give me some step by step or at least detailed instructions on how to best accomplish this?

My plan so far is to run 12ga. wiring from the battery to a Painless Performance Cirkit boss auxiliary fuse block. Then run 12ga from the aux fuse block to the weatherproof switch in the bed. From the switch run 12 ga to each of the 2 lights.

Am I leaving out any important steps? Any changes needed? Does this cover me for a ground or do I need to add something to ground this?

 

The basic wiring you have setup correctly.

The lights should not really draw enough to require 12 AWG wire, but the info on Whelen's web site does not give the AMP draw per configuration.

There is not a lot more to the install.

If you have the trailer tow package, and don't mind needing the key on to make them work, you could use the trailer tow battery charge circuit to power them, so you don't need to do all the extra wiring today.

Either way ( trailer tow adapter or new circuit ) the ground at the back of the truck where the trailer tow adapter would work fine for the ground on the LEDs.

Let me know if this is not clear, or I missed a question you had.