I'll probably have to do this myself shortly. I'm waiting for my Clearview Roadster Screen, which is wider than stock. If it can't clear the indicators with the Triumph indicator extensions, then they will have to be relocated.
I just installed the Triumph light bar on the weekend, and getting the wires in there was a little tight.
It has been recommended to use single wires instead of 2 joined together in a sleeve. The light bar will more than likely have to come off the bike to get the wires out the centre access hole.
Getting a stiff wire through the hole first to use as a string line would help... just don't ruin the wires that are already in there! Maybe cover the end in some tape or something so that end isn't sharp. Shutterbug has suggested to use 6' long wires (2 of them, with a 2" stripped piece in the middle. When you see the 'naked' wires pass through the centre hole, fish up the wires though the hole, and then apply shrinkwrap over their exposed lengths.
For the lights, cut the wires half way, and splice in. This way you will retain the connectors that are behind the grips. Oh yeah, best to disconnect the battery first.
I think that's about it. Oh yeah, patience might (will) be required. Good luck!
EDIT: You may also need brackets to push the indicators forward as well.
H.
Last edited by hyates; 05/25/2010 6:49 PM.