Need keyboard backlight cable for Dell g15 5511

TLDR: I need a new backlight cable for my Dell G15 5511, and I'm not sure where I can find one.

The full story: I bought a refurbished G15 last year, and about 8 months in, the keyboard started having problems; several keys just stopped working. I used the warranty to have the keyboard replaced, but it took weeks for Dell to schedule something. Once they finally did, the IT guy didn't seem like he knew what he was doing. He took a long time replacing the keyboard, and when he finished, he rushed away.

Well, the keyboard worked, but I discovered that the keyboard backlight wasn't working. I tried the hot keys first, and that didn't do anything. I logged into BIOS, and the backlight was turned on. Unfortunately, this was days before I had to deploy overseas. I contacted Dell to have it fixed, but they said they couldn't do anything until I was back in the US, and then my warranty expired.*

I assumed that the problem was that the backlight wasn't connected, but I wasn't comfortable fixing it myself, so I had a local IT person do it. I gave him the manual and he opened it to discover that the cable for the backlight is missing entirely. He couldn't find a replacement part here, so he suggested I try to get something from the US. 

So here I am, looking for a backlight cable for his laptop. I appreciate any help you folks can offer.

* I did document this problem before the warranty expired, and Dell support said that I could have it fixed when I was back in the US even if it was beyond the warranty, but then they closed the ticket, and I can't find any way to actually execute that. In any case, I'm not back in the US.