I bought a Triumph Aux Driving Light Wiring Harness ($40) to hook up some driving lights (that I have not bought yet). I spent two evenings trying to find out what was wrong, including buying 2 different relays (which do not come with the harness, and I would have had to order a Triumph one for another $20).
After going to buy another relay at radio shack that I saw recommended on this site (by BonnieUSA), I talked with the saleman, a young kid. He was sharp. We looked at the wiring diagram I had printed from this site, and his relay's wiring diagram, and the Triumph wiring harness relay socket. The Triumph wiring harness relay socket was wired/assembled wrong. I came home and carefully (but not easy) unlocked and extracted each of the socket's pins and installed them in the right place. As soon as I hooked it up to the bike, everything worked perfect! Moral of the story: just because you get a new part from Triumph, does not mean it is a good part!
Last edited by tomv; 10/12/2006 7:09 PM.