Electrical Gurus; how do I add a keyed aux fues box? Thank you!

[taipeichris]

Hi Guys,

Happy New Year!

My questions are for the electrical gurus.

I want to run a aux fuse box which is turned on/off with the ignition key. I've got a few accessories I'd like to run but don't want to make a mess out of my wire harness. What's the best way to do this?

Currently I'm running the old style, 12 circuit painless harness part number #10108 manual #90521. When you google it, painless only shows this for their current 20 circuit kit.

The fuse box I want to use is the exact same one that comes with that kit.

The current items I have to add are below.
Front fogs.
LED light bar.
Rear wiper.
Aux heater.

The future items I want to add are below.
An aux battery.
A winch.
Electric locks, windows and FJ mirrors. (A doors project for sure.)
12v water pump.
Interior lights.

Any help would be really appreciated.

Thank you!

 

[rjrobin2002]

I would go to the back of the ignition switch, find the key on post. Then run a larger wire from it to your new fuse panel as it's main power source and be done.

 

[sykanr0ng]

I would go to the back of the ignition switch, find the key on post. Then run a larger wire from it to your new fuse panel as it's main power source and be done.

Depending on how much amp draw the accessories have you may be better off to use the wire from the key to trigger a relay and take power for the fuse box from the battery or solenoid.

 

[rjrobin2002]

True, do a medium fused wire from battery to relay, then relay to fuse box.

Then run a small wire from key on post to the small post on solenoid, then run a ground from the other small solenoid post.

 

[pcf_mark]

I used this when I did my EFI and 4R70W conversion and I still have room for stereo and phone charger:

https://www.cjponyparts.com/painles...MI3Jr0_bbC2AIVQ4GzCh0k7QJdEAQYASABEgIli_D_BwE

This gets a dedicated 12v feed line from the battery that feeds whatever you wire to it. Then it takes a hot line from the key that closes the relay so your Bronco wiring is not taxed.

 

[904Bronco]

http://www.painlessperformance.com/webcatalog/fuse7

I used #70107 weather proof on my Landcruiser FJ40 to add some circuits. Power from the Battery, ignition switch triggers relay of ignition circuits. Very clean install

 

[Steve83]

This diagram shows, and its caption explains, several ways to do it:


https://www.supermotors.net/registry/media/1076611 (for phone apps)

 

[DirtDonk]

I used this when I did my EFI and 4R70W conversion and I still have room for stereo and phone charger:

https://www.cjponyparts.com/painles...MI3Jr0_bbC2AIVQ4GzCh0k7QJdEAQYASABEgIli_D_BwE
...

Hey Mark, is there another link to the part you used? When I click on this one I get their set of four wheels.

Thanks

Paul

 

[66broncoCT]

Hey Mark, is there another link to the part you used? When I click on this one I get their set of four wheels.

Thanks

Paul

Looks like it's painless part number 70107. The link works for me.

 

[DirtDonk]

Interesting. I still get the wheels in pcf_mark's link. But I do get that one in 904's link
Looks like a definite winner.

Thanks

Paul

 

[pbwcr]

Good comments all.
What I did was run a 10ga fused (20a) wire directly from the batt to a relay that is triggered from the Ign/Accessory hot source. The extra load is trivial since all it does it operate the relay. My theory was to leave the stock wires alone and use a fresh set of electrical components for my accessories. Now I have a new +12 fuse panel and a new Ign/Acc fuse panel. Mounted them behind the kick panel. One on each side. Choice of fuse panel is installers choice. No need inside for high price water proof ones. My choice was Bussman 6 slot fuse panel. So far I have not used up all the new fuse slots , especially since several accessories I wanted to see +12, Like CB, GPS, Dome light, - and so on. My winch power/control is a stand alone circuit.
I left the stock glove box panel unaltered, however I relocated it for better access.
PaulW

 

[pcf_mark]

Interesting. I still get the wheels in pcf_mark's link. But I do get that one in 904's link
Looks like a definite winner.

Thanks

Paul

Wow that is weird! I used the Painless sub panel is you pic.