Over a couple of days, the radio/phone functions became troublesome and now don't work at all. Heater controls, clock, display all work fine.
Looking at previous posts, it seems possible that the fiber link (MOST) might be broken by a defective module or a loose connector.
I have located the amplifier under the front passenger seat, and the bluetooth/CD player in the center of the dash. The radio might be part of this assembly too. There is only one fiber connection for the whole thing.
I removed the rear seat in order to access the Sirius module as well, but there is nothing there. I looked under the rear cargo area and the left/right side panels near the rear, but no luck.
I need to locate it in case it is the cause of the break. I don't have a subscription anymore so we don't use it anyway, but I need to find it.
DOES ANYONE KNOW WHERE IT IS??
I ordered a fiber loop jumper so I can test each unit to see if that's the problem.
Apologies if it is described in another thread. I have looked at a lot of them but don't see my model/year mentioned.

 

Location should be shown in the wiring diagram. That can be found at volvodiag.com


https://vidaresources.volvocars.biz/..._39253202.html

 

Thanks for the help. I was able to figure out the issue.

Cheers