Mirroring to what? The in-dash entertainment system? To do that the entertainment system needs to have Apple Car Play for an iPhone, Android Auto for an Android smartphone. In both cases this is relatively recent technology, found in the most recent vehicles and sometimes only premium models. Your RV might be new enough, but as a bargain-basement RV model manufactured for a single retail chain, the Freedom Elite might not have the most premium entertainment system. Aftermarket receivers with Car Play or Android Auto sell for about $400 to $800, depending on whether you are also buying satellite radio. Built in navigation pushes the prices to the $1000 to $1500 range, similar to costs when these are optioned as a feature on a car not having this as standard equipment.
I'm trying to deal with this now, car shopping. I'm finding that in order to get the "radio" with the features I want, I might have to buy a more premium car model than I would prefer, paying extra for a lot of stuff I don't really want (like moonroofs and heated seats, etc).
For what it is worth, even with Apple Car Play, you won't be using Google Maps. The only mapping application supported by Car Play is Apple Maps. To use Google Maps, you need an Android smartphone and Android Auto. Google owns the Android world.