Have you considered heated gloves instead? I thought about heated grips but considering normal grips don't last, I sure wouldn't want to have to add in the additional cost.

 

I don't know if you have to stay with the Harley brand grips but the grips that came on my Limited have lasted 3 years so far, still get pretty warm.

 

 

The plain black grips that come on the Limiteds have a great rep for longevity.... the fancy MOCO accessory grips not so much.

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Can't answer your wiring question, but the HD heated grips I had installed on my '16 Roadglide are still working great after two years and 20,000 miles.

 

 

I have a set on my ultra, I don't remember what brand they are because they have been on my bike for about ten years and work awesome and get used allot living in N.D. seems spring always comes late and fall always comes early here!
they will actually get hot enough to keep your hands warm in very thick gloves! and you can use any style grips you want because these are very thin and are applied to the bars and the grips go over the top of them! ran the wiring through the bars so you wouldn't even know they were heated

 

I don't think they're year specific, just look up stock grips for a Limited..... I don't think Ultras have them?

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For ROCKOUT information & purchasing please click HERE For all Twin Cams and Evo Big Twins & Sportsters