No Sound Stumped..

[Bluesz]

Hello,
I own a 2010 135i, with HiFi stereo.
I'm stumped on what to look for at this point. I thought i had a break in the MOST but I guess not.

The car currently has no chime, radio sounds, Bluetooth works, SOS works, Navigation works.

I've also tried pairing my phone to the car and use siri to have it talk back to me via bluetooth and I hear siri talking back to me via car speakers as well as phone calls.

What I've checked.

Fuses in radio and inside glovebox
Fiber optic line from Headunit -> Amp -> MULF -> Diagnostic port

Is there anything other modules i'm missing?

Please advise.

[danix]

I would scan for error codes.

[Bluesz]

Originally Posted by danix

I would scan for error codes.

Scanned, no codes at all

It seems like everything works in terms of the HU, besides audio.
No functions are grayed out. Navi works and can direct me to a location. It even speaks back to me telling me what direction to go.

SOS button works.

Bluetooth pairing works, telephone calls are heard.

I don't have a MULF module so that's out the picture.

FM Stations shows radio description and the song being played

Just no chime, AM/FM, AUX.