I would like to install some aftermarket driving lights (Piaa's) on my 05 Road King Custom. I would like to wire these so that they come on when I turn on my high beam with out me having to flip an extra switch. (1) will the wiring harness support the pull from the driving lights? (2) Has someone done this already and can give me specific directions? I looked back for old threads on this but can't find any. It's going to be a winter project.

 

What you need to do is use the high beam ckt
to trigger a relay to turn on the lights.
Shortleg[Dave]

 

I would definitely wire through a relay. I would use the wiring from the aux switch as 12v power to the relay. That way you would have the option to have them off with the high beam on. I would use my high beam indicator wire as the trigger to the relay and just run ground to the closest place I could ground. With the aux switch on the lights would come on whenever you go to high beam. With the switch off high beam would be on by itself.

 

Those answersare exactly what I needed and why I posted that question. Thanks guys

Jarman