Where does the cable go?

[Tez~La]

Under the front passenger seat, any clues what this cable is for?

 

[Harvey Danger]

Under the front passenger seat, any clues what this cable is for?

Loose connector under passenger seat

Hi, yesterday I was driving home from the store with my new X, and at one point accelerated strongly enough to slide a bag of purchases under the passenger seat. When I got home and pulled it out, I noticed a loose wire connector under the passenger seat. I could not find anywhere to plug it in...

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