How to turn off radio?

[novemberr]

Hello,
Please help me out. On 2012 Yukon Denali, How can I turn off the radio and leave navigation on?
I mean that I can listen navigation voice without having to listen radio.
It looks that the radio has to be on all the time. If I don't want to listen, I can only turn down the volume.
Please help. Thank you.

 

[novemberr]

I found this old thread. But there is no answer.
https://gmcowners.com/gmc-forum/showthread.php?t=18606

 

[PWMac]

Does switching to AUX input but having nothing plugged in work?

 

[HiHoeSilver]

Or maybe xm channel 0

 

[novemberr]

Does switching to AUX input but having nothing plugged in work?

Or maybe xm channel 0

I'll try that. Thank you guys a lot.