The navigation systems in my 2011 SL and 2015 SL were trouble-free for the entire time I owned each car. The system in my 2019 SL Plus has been replaced once and is failing again so I recommend against purchasing one to try in an S model. Also, I doubt that it would work correctly without some upgrades to other modules. The dash clearly communicates with the navigation system for charge and climate timers as well as the clock. As someone already mentioned, you would need a GPS antenna.