Need help with audio feature (normal surround rear driver) button stopped working

[Michaelshurts]

2010 Yukon Denali just took front Bose speakers out to fix dash rattle. All speakers currently work but on the touch display there are 4 options "normal, surround, rear, and driver" the surround feature is now unavailable to select. It also seems like the sound quality is a lot lower as well but maybe it's in my head. The surround feature sounds so good I really want to get it back. Possibly the amplifier went out?
I checked the amp and audio fuses under hood and both were fine.
Could not find anything remotely similar on any thread if someone could help.
Thanks

 

[Ex Euro Driver]

If you're trying the surround button on standard am/fm it won't work. The surround system only works with external devices or dvd's.