Thank you! Unfortunately I see that somebody in the comments said that the usb-c is too short for bv9000 so I guess it will be the same for bv6800, this is his picture
Just for anybody who wondering how to do it, I just bought a few regular USB-C to 3.5mm Earphone Audio from AliExpress and cut the plastic to size with knife and it works good
I tried to upload a picture but it doesn't work in this forum every time I tried, it shows "HTTP error"