Here is a sort of grocery list for the jumper harness. This is a message I got from skizot, copied and pasted verbatim:
Since your ballasts plug into the factory harness directly, you'll just need to make sure you have female 9006 plugs at the end of the new harness you'll build (where the ballasts are in my diagram).
I'll try to first break down the parts needed (note, I've added the 2 extra 9006 female plugs in the list below for your setup):
Note that I didn't feel like running my 10 gauge wire all the way back to the battery, so I was able to easily hook it up to the Auxiliary Junction Box under the hood (it's right behind the passenger side headlight on my '02).
- 14 gauge wire (used everywhere except the ring terminal lead that hooks up to the Auxiliary Junction Box)
- 10 gauge wire (used for the ring terminal lead that
hooks up to the Auxiliary Junction)
- Black wire loom to make it look pretty when finished
- (1) 9006 male plug (check out ebay link below)
- (1) 9005 male plug (check out ebay link below)
- (2) 9005 female plugs (bought at O'Reilly auto parts)
- (2) 9006 female plugs (I didn't need these, but you do for your setup. I'm assuming O'Reilly probably carries these as well).
- (1) 1N4007 Diode (bought at Radio Shack)
- (1) 4700uF Electrolytic Capacitor (you may be able to get by with a 2200uF, as the 4700uF is almost the size of a C-battery. I didn't want to chance it, so I just wired in the 4700uF; the only side affect of the capacitor is that it adds about 1.5 second delay when you turn off your lights, which wasn't a big deal to me. I also this at Radio Shack)
- (2) ground terminals (like a spade connector, except that it's round with a hole in the middle so that you can put a screw through it and screw it down. You can get these at auto parts stores, Radio Shack, etc.)
- (2) 30 Amp 5-pin automotive relays w/relay harness (the harness is the thing that the relay plugs into and has the wires coming out of it.)
- 30 Amp inline fuse and fuse holder
- Ring terminal for the 10 gauge power lead wire (this is used for hooking the harness up to the Auxiliary Junction Box.
I chose to solder all my joints (joints are where the wires meet). If you don't feel comfortable soldering, then you can use the crimps.
The 9005 and 9006 male plugs are very difficult to come by, but I found a place to get them from - suvlights.com. Keep in mind though, I paid a premium for these babies - $8 a piece + $8 shipping. So, I just did a quick search on ebay and found this:
http://cgi.ebay.com/9006-9005-male-...ss_W0QQitemZ200209242486QQihZ010QQcategoryZ14 932QQrdZ1QQssPageNameZWD4VQQcmdZViewItem?_trksid=p 1638.m124
That looks like it has both the 9006 and 9005 male ends that you'd need. You might ask the guy first though. And, if it were me, I would just fork up the extra cash and get them suvlights.com.
Now a bit of explanation about the harness itself...
The diode is there to keep the low beams on when the high beams are switched on. The capacitor is there because when the high beams are triggered, there is a very small amount of time where there's no power to either high or low beam stock plugs. So, what would end up happening is that the power would be cut to the ballasts for about 400-500 ms while the highs turned on, and then they'd both have power again. That very quick re-strike is definitely not good for the HID bulbs (and probably not the ballasts either). So, I've put the 4700 uF capacitor across the low beam relay coil, so that during that intermittent power outage, the low beam relay stays closed and continues to draw power from the battery.
Using a relay harness is definitely a good thing, as it draws power for the ballasts straight from the battery. It's definitely not a good idea to be pulling the power through the stock wiring. Some people will say it doesn't matter, and sometimes it doesn't have any ill-effects, but I'd say those people are lucky.
I mentioned before that I chose to run my power lead to the Auxiliary Junction Box, instead of all the way back to the battery. This method is more than sufficient because their is a battery cable that comes straight from the batter to this junction box, and it's a 4 gauge wire.
Hopefully I've explained enough here, but let me know if you have questions.