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Discussion Starter #1
Going to be wiring with my own three LT for my trailer. Wondering about in isolation harness that everyone is talking about. Is there a specific one that is needed? White a lot of boat trailers to my drugs and I’ve never used one so. Thanks for the help in advance. Bryan
 

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Wrencher Extraordinaire
2005 K1200LT
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14,191 Posts
The LT wiring is not robust enough to handle additional bulb loads, LEDs maybe, of a trailer. Bushtec sells an isolater for about $110.

It uses small relays controlled by signals from the bikes wiring and then applies the higher current from a separate 12 input for the trailer lighting. I use one even though I have converted my trailer to all LED lights. It gives me peace of mind that I will not fry the bikes harness.
 
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