connecting 4 guage where to get +12V

**qwik219d9** · 08-12-2010, 03:09 AM

I'm wanting to connect a 3rd guage I allready have 2 guages and a radar detector connected to the inside AUX. inside side fuse box so it's maxed out with the 15amps.

I'm thinking maybe connect my wide band to the lower cig. lighter/ +12V since it's a swicthed +12V power supply.

I was thinking of using the air pump circuit sense I have removed the AP.

any better suggestions.

Thanks

**Head Hunter** · 08-12-2010, 07:34 AM

Wish I could help but haven't a clue.

**pajeff02** · 08-12-2010, 07:47 AM

I pulled power for my cutout from the front underhood electrical box. Like you, I had maxed out my only open power source in the dash panel. I believe in the underhood box it was an open circuit for something that our cars are not equipped with, however, the secondary air fuse may work as well.

**KMdef9** · 08-12-2010, 09:28 AM

3 guages and a radar maxed out a 15amp? I doubt it. My fogs on my jeep are 100W a peice and they're on a 10amp fuse.

You should be alright with using the same circuit, if not, put a 20amp in.

**0rion** · 08-12-2010, 09:50 AM

sounds like you have quite a bit of stuff going on there. You can definitely pull the 12v from the cig lighter or use the a.i.r. pump circuit. I would probably try to keep from running everything to the ragged edge and run a single line with a junction block and fuse everything individually.

**Hi-Po** · 08-12-2010, 10:36 AM

I did like 0rion stated awhile ago and it worked nicely. Ran a dedicated power wire to a added fuse block, and everything received its own fuse. Also, everything was on a relay as well. There's a write up with pictures laying around here somewhere.

**pajeff02** · 08-12-2010, 10:48 AM

I ran a heavier gauge wire out of my dash panel and then split it to feed everything. Unless you add a separate junction block, like Hi-Po and 0rion, things get a bit messy with everything being tied in. Not a bad idea to bring in another feed imo.

**Hi-Po** · 08-12-2010, 11:04 AM

http://www.ls1.com/forums/showthread.php?t=121134

There you go. Gosh that thread is messy!!! I did have a diagram drew out for someone else once upon a time also. It described which wire was going where and why. This may not be the route your looking to take, but its an option. Good luck

**pajeff02** · 08-12-2010, 03:11 PM

Messy? Like this?

**Hi-Po** · 08-12-2010, 04:04 PM

Originally Posted by pajeff02

Messy? Like this?

I seriously had to do a double take and make sure that wasn't one of my pictures!

**pajeff02** · 08-12-2010, 04:50 PM

LOL -- It did look a lot better once everything was tied together.

**qwik219d9** · 08-13-2010, 04:02 AM

Originally Posted by KMdef9

3 guages and a radar maxed out a 15amp? I doubt it. My fogs on my jeep are 100W a peice and they're on a 10amp fuse.

You should be alright with using the same circuit, if not, put a 20amp in.

I have a 5 amp fuse on each of the 3 allready coonnected read here the total currnet draw on this AUX should not exceed 15 amps.

Originally Posted by 0rion

sounds like you have quite a bit of stuff going on there. You can definitely pull the 12v from the cig lighter or use the a.i.r. pump circuit. I would probably try to keep from running everything to the ragged edge and run a single line with a junction block and fuse everything individually.

yes I'm thinking 15amp on the AUX circuit is enought.

I would really like to have an auxliary fuse box & have an individaul circuirt for each guage.
I plan an electric cutout next spring so a block would be very nice to keep the wiring neat organized and labled.

however I would prefer to have this fuse box under the dash.

?would I have to run a like #8AWG or bigger +12V power wire from the engine bay fuse boxs (connect to the post under the red cover inbetween the 2 fuse box's) to feed this auxcilary box?
? A relay and a auxcilary block can it be wired diretly to the battery since the relay has a swicthed +12V to turn this block on? if yes this would be much easier.

Originally Posted by Hi-Po

I did like 0rion stated awhile ago and it worked nicely. Ran a dedicated power wire to a added fuse block, and everything received its own fuse. Also, everything was on a relay as well. There's a write up with pictures laying around here somewhere.

yes I read this stickie very good writeup.

Originally Posted by Hi-Po

http://www.ls1.com/forums/showthread.php?t=121134

There you go. Gosh that thread is messy!!! I did have a diagram drew out for someone else once upon a time also. It described which wire was going where and why. This may not be the route your looking to take, but its an option. Good luck

you did that for me a while back thanks again for explaining I would really like the extra fuse box under the dash you're thoughts on wiring under the dash. mainly on the +12V feed line.

I've have this guage for a while and have taken my time installing it.

I have the guage mounted, grounded & recently had the O2 bung welded into the driver side Y, so now I'm anxious to finally connect this wide band to check out my tune.I would prefer not to use the lower cig. lighter circuit even if tempary but probably will untill I figure the best way to wire up a extra fuse block.
Thanks Guy's for helpfull advice
here's what I have done so far.

image of the O2 bung I choose this spot because it's close to the LT collector, access hole and on driver side away from the #7 lean
cylinder.(from what I've read the driver side gives more accurate readings

feel free to advice or constructively critazie

Oh and thanks PAJeff02 & bigrondownhiller for you're good advice

I'll most likely end up w/ something like this even though it's pricy.
http://www.jegs.com/i/Painless-Perfo...50#moreDetails

or this. I like this one better from HIPO 6 connects would be enought for furture growth like DC/AC power inverter & radar descambler I plan.
http://www.electricalconnection.com/...on/pp-univ.JPG