Just bought a 2020 Equinox Premier. It came with one key fob, the dealer ordered and sent me another, key ground. Looking in the manual and on line, the process to program these is involved. My concern is that I'm supposed to put BOTH fobs in the cup holder to program them, and the old one will be reset to the new codes. This concerns (scares the snot out of)me. What are the chances of loosing all controls? I'm in the process of installing Demco stay n play brake controller and Roadmaster base plate for flat towing and don't need any other drama.