Darren:
I'm guessing from your PM and this thread that maybe you don't have the light bar?
As you can see, with the lightbar, wires already come out fo the bar center and back into the headlight. We just route with those.
I did get that Kuryakyn Round-It wire wrap and it's good stuff. 6' section from JP cycles shipped is like $15 so I have plenty for other parts of the bike and my chopper project. I bought the 1/2" size, but the 1/4" size would be better for only running signal wires through:
http://www.jpcycles.com/productgroup.aspx?GID=708fb6bc-9df7-42aa-9ff7-1c585739d177
