I bought a a rotary file for my drill and cleaned up the inside of the handlebars so I could fit the bar end turn inside them. Drilled two holes in the underside of the bars to route the wires.

Turn signals for 7/8" handlebars at
http://cgi.ebay.com/ebaymotors/_W0QQ...KQ3aMEWNXQ3aIT

I removed the stock turn signals and wired up the bar end turn signals to the front turn signal wires.



I used some cable wrap to clean thing up and now with the rear turn signals gone, I can start on a rear rack.