[osand39]

So I recently bought a 06 330i. It has an aux input under the arm rest but it doesn’t work. I’ve tried plugging in different devices with different cables and I still don’t get the aux option in the audio menu options. There’s only Radio, CD, and USB. I don’t have a USB port so idk why that usb option is there and it’s not selectable. The cigarette port next to aux port works and so does the Bluetooth.

I’ve looked around and tried messing with the TCU/MULF to look for loose cables but no luck. Car also has L7 and everything seems to be stock. Any help would be appreciated, thanks.