Lonnie Walker

I bought a 2014 GMC Sierra 1500 that was in a flood I looked under the seat and all the seat motors are rusted the seats,radio,mirrors,pedal adjust doesnt work from the water damage just replaced the transmission from the water that was in it,wondering if theres a module that is stopping everything from working,the truck drives fine its just those parts thats not working that driving me crazy,any suggestion where the module is that controls the radio,elec seats,a/c, etc...