There are numerous ways to run the cabling or wiring from the roof back down to engine bay and listed below in order of preference is how most professionals be it 4x4 shops or auto.
How to install light bar on roof of truck.
I was wanting to install a 50 light bar on the roof of my truck.
Mount your led light bar to the roof top brackets.
Xpi light bar has two sets of holes on each side that both bolt on the mounting feet.
Test your led light bar to make sure it fully functions.
Essentially a light bar mounts onto the roof sometimes elsewhere but normally the roof of a truck or suv in order to help provide additional lighting.
When you re done give the light bar on your truck roof a little shake.
Use our guide on how to install a relay harness kit with on off switch.
Installing led light bar side and lower brackets.
See more how to run the wiring for roof mounted led light bars eddie september 25 2020 09 38.
You can now enjoy your new truck rooftop led light bar.
The final step to installing an led light bar on your truck roof is to connect the wiring.
Getting the light bar up and away from the roof allows the light bar to not be blocked by the roof skin right in front of it.
This video shows how easy it is to diy install the 42 inch stedi st4k 80 led light bar to the rhino roof rack on a ford ranger raptor.
Wire the led light bar.
If it moves at all tighten the screws a bit more and try another shake.
However my truck is fairly new and dont want to drill holes into the roof.
Here s another example on another vehicle of how to properly mount an led light bar on the roof of your truck.