Have you ever been to Alaska? Everybody has light bars. You can drive for hours in the dark without seeing another person and your life can depend on seeing a moose on the road.Please don't install a light bar. It blinds other drivers and makes everyone else hate us for driving trucks.
This IS the solution.Do you want your bar to have a second switch in the cabin as well, or do you just want it to come on automatically with the high beams?
For the latter, you’ll need a relay harness to pull power from the battery. On my Tacoma I used a posi-tap connector on the drivers side high beam positive and wired It to the switch terminal on my relay. Power came from the battery, ground to the chassis.
86 from your switched source, 30 from your battery with a fuse, 87 to the light bar positive, 30 to ground.
I’m familiar with relays and have used them in the past to do the same thing. Do you have LED headlights? I heard it doesn’t work with the LED headlights.This IS the solution.
I have my grill filled with single LEDs all wired exactly like this.
Bosch Relay. Summit Racing... Six bucks!
No I don't but I can't imagine why it wouldn't work. You might need to use solid state relay though.I’m familiar with relays and have used them in the past to do the same thing. Do you have LED headlights? I heard it doesn’t work with the LED headlights.