I have used Air Force One on both a 2010 Buick Enclave and now my 2015 GMC Acadia. On both vehicles I placed the box next to the radiator under the large plastic cover by the grill. That location has worked well on both vehicles.
Paul
Paul & Sandy 2018 Tiffin Allegro Bus 40AP '56 Ford Customline Victoria '62 Chevy Impala SS 409/4spd U.S. Army Retired Cloverdale, OR