Recently purchased 2022 newmar baystar 3401 Above drivers sear is the dvd input box. When playing a dvd the tv in dining room plays the movie fine. However. The outside tv won’t recognize the dvd. When scrolling thru the source on tv the Blu-ray source is greyed out with an x. Yet the cord that says dvd is connected to the hdmi port. Is there something I should be switching off inside the rv so the outside tv plays the dvd. Any help would be appreciated I’ve tried with and without the inside tv on in case that was the issue.