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1997 - 2003 Ford F150 General discussion on the Ford 1997 - 2003 F150 truck.

Splicing into the reverse lights

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Old Sep 22, 2014 | 09:20 PM
  #11  
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It's a bad idea to have a large draw on the factory wiring... there's enough going on there already for what 16ga?? I don't recall, haven't messed with it in a while... Either way yeah an LED bar should be ok, but a set of fog, floods or offroads could start a meltdown...
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Old Sep 22, 2014 | 09:28 PM
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Originally Posted by A7X
It's a bad idea to have a large draw on the factory wiring... there's enough going on there already for what 16ga?? I don't recall, haven't messed with it in a while... Either way yeah an LED bar should be ok, but a set of fog, floods or offroads could start a meltdown...
Bar-B-Q
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Old Sep 22, 2014 | 09:44 PM
  #13  
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Originally Posted by Cmanjr
LEDs don't draw enough power to create a problem which is why this is ok. If you draw too much power from the wire like with the lights the OP wants to, you'll burn your truck to the ground from an electrical fire. You never want to pull that much current from a wire like that. To OP: Just wire in a relay, better safe than sorry. You probably think your truck is hot now, just wait until that wire overheats, better have the marshmallows and hotdogs ready.
o ok
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Old Sep 22, 2014 | 11:59 PM
  #14  
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Originally Posted by biggreenf-150
o ok
Yeah but you'll be fine. Those LEDs don't draw enough current to cause a problem.
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Old Sep 23, 2014 | 12:38 AM
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Check the how to section in lighting. I did some elaborate wiring diagrams.

Just a novice electrician who likes to tinker.
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Old Sep 23, 2014 | 01:31 AM
  #16  
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I got a LED brake bar that had reverse lights integrated. The brake, left turn, and right turn all wired into the tow harness, but I had to tap into the reverse light to get the reverse on the led bar working. I just taped into it from the rear light and everything works fine no problem. Like other people said, a LED bar should be fine, anything else you would want a dedicated wire running to the battery with a fuse.
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Old Sep 23, 2014 | 02:03 AM
  #17  
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Originally Posted by ibd2328
Check the how to section in lighting. I did some elaborate wiring diagrams.

Just a novice electrician who likes to tinker.
You got a link? I'll check it out in the morning. Right now my KC's just have wires running from them to a switch, then a wire from the battery to the switch, and a grounding wire.
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Old Sep 23, 2014 | 08:18 AM
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Normally I would always run a Relay. However in my case I was using two small light bars, 5 LED's a piece. They draw almost nothing. So I spliced them directly into the reverse lights. It's been 4 months with no problems. However if it was anything other than LED, such as halogen, or even a large LED light bar such as the one I have on the front of my truck I would run a relay, no doubt. It's a little more work, but well worth it. You can even run a separate switch so that you can power the lights whenever you want. Such as hooking up a trailer, or someone tailgating.
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Old Sep 23, 2014 | 02:17 PM
  #19  
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I would use a relay, and/or a seperate switch to activate them
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Old Feb 21, 2016 | 10:56 AM
  #20  
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Originally Posted by UtahGuy
Take the tail light cap off the truck and pull out the cluster. Find the reverse bulb. See which wire powers that bulb. Splice into that wire.
Is this possible? Anybody know..
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