The cable in the glove box on the 308

Mrbs, we just bought our car, 2016 model 308, there is a cable about 20 cm long coming out of the upper left side of the glove box. We realized later on in the glove box, I wonder what cable it is, the previous owner said that he used a sound system and removed it before selling it, but it's also relevant. could it be a cable? There is a socket like a USB socket at the end of the cable