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Accessary Switch question

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Old Mar 15, 2016 | 02:16 PM
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Default Accessary Switch question

Hey guys, What does the accessary switch on my 08 Ultra dash control?
And where is the plug? under the seat? what does it look like?
I looked at the wiring diagram in my service manual but couldn't find a termination point, other than the cigarette lighter plug.
 
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Old Mar 15, 2016 | 02:23 PM
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https://www.google.com/url?sa=i&sour...&rct=j&cad=rjt
 
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Old Mar 15, 2016 | 02:36 PM
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I wouldn't recommend anyone doing this but I spliced into the wires for a handlebar-mounted USB power source controlled by that switch (Road King - no fairing). The wires still run under the seat so I can use them later if need be.
 
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Old Mar 15, 2016 | 04:44 PM
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Originally Posted by Tesla_HV
I wouldn't recommend anyone doing this but I spliced into the wires.....

made it harder than is has to be- all USA models have an unused power source attached to the headlight loom ( it is for the Euro position light):
orange/wht...black is ground:



mike
 
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Old Mar 15, 2016 | 04:50 PM
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Originally Posted by mkguitar
made it harder than is has to be- all USA models have an unused power source attached to the headlight loom ( it is for the Euro position light):
orange/wht...black is ground:

mike
Nice to know...I wondered what that was.
 
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Old Mar 15, 2016 | 05:16 PM
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Originally Posted by mkguitar
made it harder than is has to be-
This is my specialty.
 
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Old Mar 15, 2016 | 07:17 PM
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the switch controls a relay,the relay supplies power to the plug under the seat. dont think the wires to the switch are designed to handle much of a load couple amps at most.
 
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Old Mar 15, 2016 | 07:34 PM
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I added the HD accessory cigarette lighter socket. I zip tied it under my right side cover and can run my GPS, phone charger or whatever else can plug in. The switch turns it on and off.
 
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Old Apr 19, 2016 | 10:47 PM
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There is no plug on my 08 ultra in the middle of the tank under the seat area, but there is a grey plug like that one under left side panel near fuse panel. I wonder is that it. Although this one has power all the time whether acc switch is on or not. But this might be because I have the harness installed that turns on my spots whether in hi or low beam.
 
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Old Apr 20, 2016 | 12:07 AM
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mkguitar has a nice solution.
Originally Posted by Tesla_HV
I wouldn't recommend anyone doing this but I spliced into the wires for a handlebar-mounted USB power source controlled by that switch (Road King - no fairing). The wires still run under the seat so I can use them later if need be.
I went with this plug-n-play for a USB power plug by 3BR Powersport on my King. I run it with the main harness under the tank to the bars.
https://www.3brpowersports.com/PDF/T...ures_Rev_1.pdf
 
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