I am a newbie to the forum so bear with me please. I have an AVIC7100 and recently the volume for the navigation and speakerphone has degraded. It sounds almost as if its in mono instead of stereo. However, the radio and when I am bluetoothing some Spotify in sounds just fine. I am running the most recent software update V1.10. I have looked through the settings to try and see if its something obvious, but find nothing. I have made no changes to the any settings in months. So I don't think I am to blame for this. 

I am just wondering if anyone has had any experience with an issue like this or can offer some troubleshooting advice. 

Thanks in advance.