CEDIA Expo 2021: Metra AV Showcases Install Bay Accessories for Home Theaters September 8, 2021 | Home / September 8, 2021 rave-video / CEDIA Expo 2021: Metra AV Showcases Install Bay Accessories for Home Theaters CEDIA Expo 2021: Metra AV Showcases Install Bay Accessories for Home Theaters