On Fri, 24 Aug 2001, Mark Reda wrote: > Hey guys, I'm planning on rewiring and relaying the headlights on my 91 > Jetta GTX. > I was checking out http://lighting.mbz.org. > Does anyone know what each headlight wire does and the wire color? > Any recomendations on relays (how many, brand and rating)? > I'm planning on using 8 or 10 gauge wire (overkill!). > Did you run any fuses? >
8 or 10 is overkill, because you're not going to be able to find plugs for the headlights that will accept that size of wire. I would stick with 12 ga, it's plenty big for the amps you'll be drawing and the length of the run to the headlights. Buy yourself a multimeter, and just test each wire.. that's the easiest way to be sure. You can get a cheap needle type one at a hardware or electronics store for around $10. I didn't run any fuses when I did mine, although I probably should have. Your best bet would be to hunt down some relays with fuses built in. Otherwise, you'll want a fuse on the input to each relay. Speaking of relays, I'd recommend going for the largest ones you can find- 30 amp or better. If you plan on running really high wattage bulbs, i would probably do 3 relays- one for both low beams, and one each for the high beams. If you can't find 30 amp relays that would probably be your only option. If you've got 80/100 H4's and 100W H3's in the centers, that's 400W with the high beams on. At 12 volts, that's over 30 amps! Hope you have a good alternator. :) With a 20A running each high beam, that would give you enough of a cushion. > Here is the thing... Right now I have stock DOT Areo lights, in the future I > want to easlily be able to upgrade to Quad round running 80w/100w(or > possibly swap back and forth between Quad and dual rounds) setup without > completely rewiring the system. > Well, if you want to do that you might be kind of stuck, as the stock aero's have different plugs than the euro H4's. You could use adapters, but that makes all that huge wire pretty worthless. If you're going to switch later I would leave some extra wire at the ends so you could re-solder on the H4 connectors. Oh, and you'll probably be happy with your aero's for a while longer after you do the relays... I thought my H4's were awesome until i relayed them. Even with 55/60 bulbs they're really damn bright. :) _____________ List Sponsor: http://www.netsville.com To remove yourself from this list, send mail to [email protected] with 'unsubscribe a2_16v' in the body of your message See us on the web at http://www.a2-16v.com Visit the 16V Homepage at http://www.gti16v.org
