Thread: Wierd Wiring for Driving LIghts

No worries - I'll even throw in a few suggestions to make things easier for you

I'm assuming it's a pretty idiot-proof stock loom, comes with all the crimp connectors, inline fuses and such. Bolt up the relay switch somewhere near the alternator - say, top of the wheel guard, and earth the relay from the bolt. Run the main power feed for the relay - in your case the thick yellow cable with the 25A fuse from the back of the alternator output terminal - just crimp a ring connector to the yellow wire and bolt it on. Then all you have to do is run the remaining two light cables back to the dash wherever you are putting the switch. No messy running cables all the way back to the battery, and you get the best voltage for your spots at the alternator.

Thanks Mike- got it all finished today. Tucked the relay behind the front panel (near the horn) and fed it from the battery- only about 18" away. The spots are close here too, so the lines are pretty short. Earthed the relay to the attach bolt like you suggested. Ran the twin core back to the panel, to a rocker switch with an LED located just below the main switch panel. Fed the switch with power from the high beam line located inside the panel via an in-line fuse- this was the only awkward fiddly bit. It all worked without releasing any smoke when I turned it on.
I guess I might lose a few tenths of a volt by not feeding it direct from the alternator, but the cable from the alternator to the battery positive is pretty heavy duty.

Cheers,

Coop