You may be thinking, how am I supposed to wire up LED lights to my vehicle? The answer is simple; all you need is an automotive wiring harness that includes a relay, switch, and fuse. You'll need to connect the wiring harness to your truck's battery, route the switch to your cabin, and finally connect it to your lights. The fuse included in the wiring harness is there for overcurrent protection in case there is an electrical short circuit. Below is a simple wiring diagram you can use to help you with the process. Any other questions you may have, just contact us.