Rocky Hamilton

Could someone give me the exact location of the onstar box for my 2023 Duramax? I bought this after a theft at auction. I can see the harness dangling. I think the box location is above the brake/gas pedals, but I can't see it. There looks to be a bracket that would hold some type of module, like the module was removed completely from the vehicle. I just want to verify before sourcing another one. Can't find the exact info on the interweb. Here is a pic of the empty bracket. Thanks!