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2006-2009 Range Rover Sport
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42 Posts
Discussion Starter #1
I recently got a slim 30" light bar and mounted it behind the grill. Sweet!
20180829_202016.jpg

View attachment 266268
now for the hard part: wiring (or what I thought would be the easy part...)

I received a relay kit with a standard 2"x1" rocker switch but I'm not sure I'll use the switch. For one, its the switch is rather large and I'll have a hard time finding the space for it. Two, I'm squeamish running wires through the firewall.

I've never used my fog lights or felt a need to, so I'm thinking the easiest way to wire the light bar would be to trigger them off the fog light circuit. Trouble is, I can't figure out the relay location/situation...
YDXJ0059_LI.jpg
I found this relay in the fuse box, appears to be for the fog lights. however, I'm not getting a useful voltage reading on the pins. I'm getting 12mv and 20mv on the supply and gate pins, which doesnt make sense to me. If I pull the relay, the fogs don't work. Anyone know if this is the proper relay?

I realize I could tap into a wire at the fog lights to operate a relay, but ideally I could tap into something closer to the relay/fuse box.

This is the light bar and relay kit if you're wondering.
https://www.amazon.ca/gp/product/B076SV8CKK/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1
https://www.amazon.ca/gp/product/B074HC267M/ref=od_aui_detailpages01?ie=UTF8&psc=1
 

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2006-2009 Range Rover Sport
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385 Posts
Should you decide to install the switch, there is a rubber plug in the firewall that you can use to pull the wire through.

it sits behind the brake servo and comes out just above the pedals

RIMG0012.jpg
 

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Premium Member
2006-2009 Range Rover Sport
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516 Posts
Skip the relay and tap into the power at the fog lights. The only issue is the fog lights turn off when the high beams are on.
 

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2006-2009 Range Rover Sport
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42 Posts
Discussion Starter #4
Thanks flydive, that's helpful. I'll check that out.

MI2VA, somehow I forgot that happened. I'll go with a smaller switch and relay if flydive's tip pans out.
 

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2006-2009 Range Rover Sport
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42 Posts
Discussion Starter #5
success! got the switch into the cabin, and the harness tucked away. I'm looking for a smaller switch but for now the rocker switch is dangling near the footwell.
 

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2006-2009 Range Rover Sport
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516 Posts
Love to see some pictures. I'm curious if the light bar out shines your high beams.
 

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2006-2009 Range Rover Sport
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42 Posts
Discussion Starter #7
20180904_211729.jpg
For sure! here are lowbeams:
20180904_213703.jpg
lowbeams and LED lightbar:
20180904_213657.jpg
Lowbeams, LED and Highbeams:
20180904_213712.jpg
Lowbeams and highbeams:
20180904_213708.jpg
I'll say the highbeams are better at throwing light down-road, good for seeing far. The lightbar doesn't throw as far, but it fills in the medium range and peripheral. I don't see myself doing Baja races, more for cruising 20-40mph on a back road or slower on a logging road or trail. for that, I'm happy with the light bar. I also appreciate it's stealth mounting.

Additionally, the highbeams and LED light bar together give better color rendition. of course, my old smartphone camera doesnt do the light justice :)
 

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2006-2009 Range Rover Sport
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516 Posts
Love it. Very well done.
 

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Couple of years ago, I installed LED off-road lights in the opening across the middle of the bumper. Instead of running wires through the firewall, I used a wireless switch that activates a relay. Harness and remote can be seen in the links below. This may be helpful for someone else interested doing a similar project but prefers not to run wires through the firewall:

https://www.superbrightleds.com/moreinfo/wire-harness-relay/led-light-wiring-harness-with-relay-and-weatherproof-switch-dual-output-dt-connector/1979/4454/


https://www.superbrightleds.com/moreinfo/wireless/wireless-remote-control-switch-with-key-fob-for-wire-harnesses/2052/4640/?accessory_of=1979-recommended
 

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2006-2009 Range Rover Sport
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42 Posts
Discussion Starter #11
wireless would have been nice and easy, but it didn't fit my need. I plan on integrating smaller toggle switches into the stock lighting switch module. I will have one switch for On/off, and one to arm the LED's to come on with the highbeams. Will update when I get that going.
 
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