Which cable is the Neg. Aux Cable?

Fitzz47

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Which cable is the Neg. Aux cable?
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MrMischief

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The black one

Go about 3 minutes in..... I think that will show you what you're looking for.

 

Gregj

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The black one
Lol true to his username a very helpful post.
The black cable attached to the negative terminal with a 13 mm nut.
Gregj

This one.
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MrMischief

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No problem Jim! This whole two battery thing leaves me scratching my head most of the time. I got a Prius that I drive and I believe I got my head wrapped around that fairly well but for some reason the Jeep just confuses me. Say I'm going to install a stereo... wait, this is a Jeep it needs to be a Jeep thing, light bar! Say I'm going to install a light bar. Most of the time the first step on any set of directions I don't read says to disconnect the battery. In the JL do I need to disconnect both batteries? From that video it looks like I would. Not something I would have thought I needed to do.
 

Rhinebeck01

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In my defense I did come back with an edit to provide a video I knew existed that I think will help. I'm only a PITA most of the time.
@MrMischief

Careful taking for granted all you see in YouTube videos you find in regard to the Wrangler JL..

Lots of what you see / hear in such videos is incorrect / outdated / and just out and out wrong...

The video that you just posted, for example has it's shortcomings, to say the least......

Yes, view the videos BUT, do verify what you see in them..

Examples..... you don't need to pull the PDC to get to the Aux battery ...you can but not the smartest or recommended way. Another video out there says the Tazer JL can disable "Auto Park" which is wrong... another video shows side markers being installed incorrectly and and....
 
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Fitzz47

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I have two 2018 wranglers with original batteries. Just made up two n1-n2 jumper kits. Just want to make sure which neg. to remove. So I added a 13 mm. Socket to the kit.
 

MrMischief

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Examples..... you don't need to pull the PDC to get to the Aux battery ...you can but not the smartest or recommended way.
See.... I'm more comfortable disconnecting the PDC than I am with removing the fender. I have a habit of breaking those fender clips, find them annoying to source, and I really struggle with disconnecting the wire. The PDC looks intimidating but it's not that much of an issue. I suppose when I break the PDC it's going to be $600 rather than just getting complaining about some clips, so you're probably right.....

But is there a better way? A way the average owner can do, just like we used to change batteries?
 
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