OK, I got the givi E55 in today and successfully installed it to phils rack using the supplied quick disconnect system provided by Givi. Everthing looks good. Now, I need to know which brake wire to clamp the Givi wires to. I'm not sure if it's just one or two wires from the brake light on the bike. And, does anyone have a good location to run the wire without drilling any holes in the plastic?