Wiring LED fog lamps into stock set up

I'm working on becoming more visible to the cagers here in TN, and I'd like to add on some LED fog lamps that will be directly linked to the stock fog lamp switch. Anyone have experiences with this?

I wired a set of these into my fog light switch. No problem.

http://www.lights.skenedesign.com/Photon_Booster.shtml

Do you already have the fog lamps mounted now? If so, it should be a doddle, buy the LED reflector inserts, put them in there and use the cables already present (well, there is one positive wire with current and the other you can just attach to the housing on the inside to ground it). Haven't done it, but I did mount a set of fog lights a couple of months ago (my bike is from back when Triumph were extra greedy and sold those as an addon).

There is also a positive (power) wire available inside the headlight that is connected to that switch but only if you have the sub-harness that plugs into the existing little connector on the stock harness, under the tank. So if you don't have the stock fog lights already, you probably want to buy that bit of cable and then figure out how to get cables from there into whatever lamp housings you want to mount.

Instructions for the original fog light kit, shows clearly how the power cables are connected and whatnot:

http://www.triumphinstructions.com/ProdDocs/A9938085-EN.pdf

The sub-harness is available at World of Triumph for £6.90 and no doubt other places:

http://www.worldoftriumph.com/trium...ck_01=&block_02=100053709-1-2&block_03=610510

Hmm, also need a relay I guess and uh I may be missing something with regards to the indicators... oh well.

But (without having tried, so there may be pitfalls I'm not aware of) if you have the stock lamps on there already, it should be very nearly effortless - open the fog lights, take out the reflector, put in the LED reflector and connect the wires, assuming we're talking about something like Truck-lite Phase 7 4.5 inch driving lights.

The LED's are more directional forward than the stock lamps though, so from an angle you may wind up being somewhat less visible. There are other options for more lamps too, Clearwater for instance, in addition to the ones already mentioned.

Thanks for all that info, @cr0ft... However, I do have the stock fog lamps (They came with the bike) and would like to add extra lamps on my highway bars. Eventually, I'd like to go to an LED assembly for the lamps on the bike, but the ones I'm talking about are in addition to the main lamp and fogs already on the bike.

Camptc said:

Thanks for all that info, @cr0ft... However, I do have the stock fog lamps (They came with the bike) and would like to add extra lamps on my highway bars. Eventually, I'd like to go to an LED assembly for the lamps on the bike, but the ones I'm talking about are in addition to the main lamp and fogs already on the bike.

Click to expand...

Aha. Well, in that case I guess you want to wire in a relay that triggers on the power when you turn on the driving lights. Should be pretty easy, just get a small Posi-tap, tap into the wire to the fog lights inside the headlight (should be the easiest wire to find, but anywhere you can find it I guess) and use that to trigger the relay to provide power to the aux lamps.

So positive and negative to the relay from the battery or a fusebox and from the relay to the new aux lamps, then a trigger wire tapped into the fog light cable.

Perhaps whatever lights you buy already come with some sort of cables and relay, at that.

Thanks, cr0ft. I was picturing a powered leg running to the light from the driving light switch, with a negative running from terminal to lights as well. I've done some very simple wiring, but not on any vehicles (except for some brake controllers, but those had great directions). I found these LED lamps that are technically 'off-road' lamps, but they are incredibly small and bright. I have 4 'cans' that I'd like to put on the bike so that I can fan them out for better, wider visibility at night. That, and these are wickedly bright during the day, too, so I can flip them on in traffic to let cagers know I'm around. These lights just come with a positive, negative and ground leg. No relays, no Posi-taps. I'll dive in and report back on how things go!

Yeah, but if you wire them directly into the fog lights you further increase the current through the already known to be questionable key switch, people have reported winding up stuck cause the bike wouldn't start.

So you want to buy a relay separately, hook wires from the relay to the battery, then hook those leads from the LED's into the relay, and then have the activation cable go to the positive cable for the fog lights. You have to buy the relay and some posi-taps and maybe posi-loks separately too hook everything up and to easily attach to the existing wire. The relay will then switch the lamps on when it detects that there is current flowing to the existing fog lights but it will draw power from the battery directly.

I haven't bought any myself, to be honest, but something like the pre-wired relay and one of the sealed relays from places like http://www.wiringproducts.com/automotive-relays-sockets would make it pretty easy, just connect some wires and you're good to go.