Radio goes "boom" after start up

[Chicago Mike]

I own the 2020 Equinox 2.0 T. Bought used in 2023. If I leave the radio on when I shut the engine off, sometimes on start up, I'll hear (and feel) a loud "BOOM" sound that scares the hell out of me! As I said, it doesn't happen EVERY time, but when it does, it is quite startling! In order to avoid this, I need to remember to turn OFF the radio each time I shut the car down, or take a chance of it happening again. Has anyone else experienced this? Thanks for your help! - M

 

[micbanger]

I had the same issue along with messages about auto stop/start and hill stop assist. Replaced the battery and all was good.