At least you've, erm, nailed it. I ran all my switch wires through the bars on my vn15, 9 on one side and about 6 on the other. Extended, joined, sheathed, all invisible. Went to Liverpool, bike cutting out & back in on the M62, gouts of flame and cannonfire out of the open pipes. Got there, dismantled headlight, switches, nothing visibly wrong. Right, disconnect battery and start digging in. Battery negative was loose, I'd forgotten to tighten it up after re routing the wires!