Can you see me now?
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Novice
Joined: Jun 2021
Posts: 20
Likes: 28
From: Florida
No the yellow wire is for dimming and you will not use it. Also be aware these lights will not work with the fog light harness under the radiator. You will get 12v but not enough amperage to light the lights. They require 2.5 amps each. I hooked them to the heated gear plugs under the seat by making a harness with 5.5mmx2.5mm barrel connectors . They are on whenever the ignition is on. The mounting hardware is a 3 1/2” 5/16 -18 bolt and m8 spacers. ( a 1 1/2” and two 3/8” ) and a flat washer( between the space and plastic wind deflector bracket )per side. the hole on the light for the bolt will need to be drilled out from an m6 size to 5/16” to accept the bolt.
Last edited by RK4meStA; Mar 10, 2025 at 03:15 PM.
HDF Community Team
Joined: Mar 2017
Posts: 694
Likes: 820
From: East Texas
No the yellow wire is for dimming and you will not use it. Also be aware these lights will not work with the fog light harness under the radiator. You will get 12v but not enough amperage to light the lights. They require 2.5 amps each. I hooked them to the heated gear plugs under the seat by making a harness with 5.5mmx2.5mm barrel connectors . They are on whenever the ignition is on. The mounting hardware is a 3 1/2 5/16 -18 bolt and m8 spacers. ( a 1 1/2 and two 3/8 ) per side. the hole on the light for the bolt will need to be drilled out from an m6 size to 5 1/16 to accept the bolt.
Road Master
Joined: May 2022
Posts: 846
Likes: 696
From: Near Memphis
Are those Denali DMs? I run mine off an EZCan which shows the maximum current draw is around 1.4A each when strobing (peak current condition) or about .9A when steady at max power.
Last edited by Pappy35; Mar 11, 2025 at 10:28 AM.
Thread Starter
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Novice
Joined: Jun 2021
Posts: 20
Likes: 28
From: Florida
Yes they are Denali dms I was told by the tech at Denali they draw 1.5 amps each and thats why they werent lighting up through the fog light harness. Guess they were mistaken but I still have no explanation as to why they didnt work when connected to the harley fog light harness under the radiator. The harness did switch on as I was getting 12v once I turned it on through the IFCU. If someone has an explanation and a way to light these lights via the fog light harness Im all ears.
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Road Warrior
Joined: Feb 2017
Posts: 1,522
Likes: 641
From: Saint Charles, Missouri
Use a relay using the factory foglight harness as the switching circuit and bring up a new power wire straight from the battery (add a fuse).
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Novice
Joined: Jun 2021
Posts: 20
Likes: 28
From: Florida
Slingshot883 Thank you for your suggestion. I appreciate your input and I understand what you are saying and agree it is a valid workaround.At this point if I cant use the factory harness as intended Id rather avoid using it all together. The IFCU on these bikes is wonky enough as it is. Last December at my 1000 mile service as the dealer was updating the software it crashed and had to be replaced under warranty.
I dont want to give them any excuse to deny warranty claims in the future.
I dont want to give them any excuse to deny warranty claims in the future.
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