Mr gyro Johanson

Just bought a 2019 Silverado Z71 and the radio every so often goes black but stays on. Can’t lower or raise the volume, I heard this is a current situation GM can’t figure out the issue. There not sure if it’s a software issue or the radio it self. Question is, do they have an aftermarket radio? I seen the 2018, you can buy a linkswell Tesla radio but can’t seem to find one for mine. It’s the base model Z71. All climate controls are manual and not digital. Would love to buy a bigger radio. Thanks in advance