Read on this thread on the F150 forums, its the same parts for your Edge. Contact Benny at Levittown Ford Parts on that site, he is hands down the most knowledgeable person you can talk to about this system.
https://www.f150forum.com/f38/ford-remote-access-app-smart-phones-201915/index137/
Ive had remote access in my 2012 SEL and now my 2014 Sport, I did the installation, piece of cake. Benny will walk you through the whole process along with activating the system for you.
Good luck
Ps- let him know if youre in the U.S. or Canada.