can anyone tell me if the update fixes the no sound from the radio....i have checked all fuses...show to be good...have tried removing battery cables...no luck...tried the rebooting the radio method...holidng power button...holding the mute button...even calling onstar method...nothing has worked...2019 ltz z71 5.3l 83000 miles...so no warranty...havent taken to dealership yet...didnt want to get the run around...so i thought i would check here...any thoughts??? and thanks for any help