Good morning everyone, I'm hoping to get some advice and guidance on a problem with my car stereo. I've had the car for about four years now and it’s been pretty reliable. But recently, I've been having issue after issue. This morning, I found that the stereo sound, Bluetooth, and navigation aren’t working at all. Has anyone experienced something like this or have any ideas about what might be causing it? Your help would be much appreciated.

I've scanned the car using the iCarSoft, and it’s showing "MOST Bus network complete: No Communication." I’ve also checked the fibre optic cable going into the back of the CD unit, and there doesn’t seem to be any light coming through. If that makes sense, could that be related to the problem?

Thanks in advance for any suggestions!