Wiring auxiliary driving lights

Kim Turner

.040 Over
Joined
Jan 16, 2009
Messages
75
Location
New Mexico
Ride
2007 triumph Rocket III Classic
Where is the easiest place under the seat to tap into the high beam wire, and what colour is it?
Thanks
 
All wire colors are detailed in the service manual.
 
yea, but if OddJob really wanted to figure it out himself he wouldn't have asked......

not that I have anything constructive to add, I just need to know as well so I can wire up my $16 WallMart lights
 
Out of the fuse block #9, there is a blue/yellow wire going to the Starter Relay. Out of the Starter Relay, a blue wire runs to the headlight switch. You can tap into either one. This, of course, will result in the lights coming on 100% of the time the key is in the ON position. I assume that is what you are after.

Some states require that aux lights go out when high beams are used. If this is your case, then you will need to tap into the blue/white wire under the tank.

DISCLAIMER: use this advice at your own risk. I'm not an expert.
 
Well, I should have taken a picture last week when I found the exact wire that you were looking for.

Anyway, it is quite easy to find. Lift the tank, and then up near the front you will see a big wire sleeve coming from the lights through the rats nest of wires and then underneath the tank. There is a coupler with, if memory serves me, three wires. One for each the low beam and the high beam, and then the third I guess is a ground (somebody smarter might correct me).

Anyway, I found it in about 30 seconds by using a continuity tester. One of those little poker things with a light bulb that lights up when you find DC power. The wire from the lights was obvious, then I verified the high/low wires by flipping the highbeams on and off.

I ended up not using it because I needed a circuit that was on all the time to run the sidecar headlights, and I didn't want them going on and off when I flipped from low to high beams or visa versa.

Anyway, get yourself a continuity tester, lift the tank, and poke the end of the tester into the coupler up there and you will find it quick.

Not sure if that helps ... but that's how I did it, and I'm not exactly an electrical genius (as evidenced by my recent F'up of melting the entire tail-light circuit).

PS: I also followed the advice of a fellow forum member and used a relay. I melted the first circuit, and didn't want to melt a second. The relay worked great and was quite easy with the wiring diagram that somebody sent me. I have a copy of the diagram still if you want it. Just holler.
 
HersheyCruiser said:
Really liked the idea of the aux lights so I just purchased the Walmart specials. I see that at least one of you has used a relay. Went to Radio Shack and the guy had no clue as to the one that I need. Any suggestions?

I got a relay at Radio shack. They were back in the large slide out bins/shelves.
 
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