Wire Over Driver's Shoulder Above Seatbelt?

[NickyV]

I'm getting ready to put my revamped headliner back in my '87 4-cl / 4-speed (base), and I am going to install an overhead dome light. I was just going to do my own wiring job and then I encountered a mystery wire. I'm wondering if anyone knows it's purpose. It is coming off of (or at least it is sprouting from) the wiring harness for the driver's side courtesy lights (are they called "courtesy lights" or do they have a different name?).

 

I'm colorblind, so I'm not always great with colors. The wire is striped. I'm thinking it is black and white, based on the Haynes manual I have. The manual indicates this is for the cargo lamp. Do you all know if this is indeed for the cargo lamp? If it is, I won't touch it, as that seems like something I might want to add one day. Or is it possible that this is for an optional overhead dome light?

 

I probably should have looked at my wiring diagram before starting this post, as I'm starting to think I just answered my own question. Then again, I've been wrong plenty in my life. Heh.

 

So what do you all think? Including pics for reference. If it is for the cargo light, I'm glad to know it. I didn't even realize that was a thing and I can see how useful it would be. I have a camper shell and a dog. It would be great to be able to run something to the camper and be able to check on Lima when it's dark out (among many other applications).

[Ωhm]

True.  It's for the Cargo Box Lamp, if equipped.

[fiatslug87]

As Ωhm said, it’s the 12+ and the light is grounded through its attachment to the cab.

[NickyV]

Thanks! That's what I was figuring. I got the headboard back in yesterday and hooked up my new dome light to the drivers side courtesy light.

 

I also did a little work on my courtesy lights. I have the aftermarket Euramtec lights, which I purchased about 5 years ago. I put some LED bulbs in, but they are still not working perfectly. I don't know how I could possibly sand the interior parts and I didn't have the patience to go at them with a paper clip or dental pick. So I tried to bend the little prongs inward just a little bit and used a queue tip to brush a little dialectic grease on all the metal parts. Now one of them is working a bit better, but they are still kinda finicky. Next time I'm in there, I'll either just replace them with some brand new ones or I don't know what.

 

Here are some pictures of my refurbished headliner. I'm pretty happy with it. I couldn't track down 3M-77 (big box store was out), so I bought what seemed to be the Gorilla Glue equivalent. Time will tell if I did a good job. But it looks good right now! I used an old blanket I had lying around. 

[pizzaman09]

Looking awesome.  I like the idea of a center dome light.

[NickyV]

On 11/4/2024 at 12:04 PM, pizzaman09 said:

Looking awesome.  I like the idea of a center dome light.

 

Thanks @pizzaman09! I'm so happy I did this. It's like... Night and day. Ha! But for real, I also replaced the halogen festoon bulbs with LED bulbs while I was doing all this. I gotta say... they are clearly brighter, but they didn't really make much of a difference in lighting up the cab.

 

But with the dome light, I the whole cab is illuminated. I am trying to be as much of an OEM purist as I can be, but this dome light doesn't really look out of place to me.

[watchamakalit]

Why not wire in a factory xj dome?  Don't they have a single isolated dome light for the rear?  Would for sure look factory.