Factory Surround Sound

[ase]

Anyone ever run into a problem where the "Surround Sound" function is not available on the factory NAV display? The Normal, Rear and Driver are working, but the spot where surround is, is blacked out and not an option. This is on a 2009 Tahoe LTZ. Any input is greatly appreciated. Thanks

 

[slocaddy]

Does it work if you have a movie in?

 

[TowGMC]

I've found surround only works on Sirius channels, and some FM channels. Maybe it's how the stations broadcast?? Just a guess.

 

[VA929RR]

I've found surround only works on Sirius channels, and some FM channels. Maybe it's how the stations broadcast?? Just a guess.

That has to be it because mine is the same way. All Sirius channels are fine. About 2 FM stations have surround available.

 

[Deephaven]

Thats good if they do. Pointless to have a surround button for sources not recorded in surround