Frank in Wingate

I have a 2015 GMC Sierra - the "no sound" problem started a couple of years ago, but it's gotten worse and worse to the point that it's about every other time I start the truck. It's not just the radio, there is no seatbelt warning sound, no turn signal sound - nothing. I'm convinced the problem is a computer problem. I also installed a remote battery disconnect to address the problem that intermittently the truck thinks it is overheated, when it's not. The problem is not the sensor on the engine, the fix is to disconnect the battery and wait 30 seconds to reset the computer. I've fixed low alternator voltage by resetting the computer. It's sad to see that GM can't get a fix in 8 year models.