Suggestion: email Tim at rvcams.com
He sent an adapter for my upgrade from the 14-yr-old OEM (Voyager) B/W to a color system. He's the "go to" guy for a LOT of RVers re B/U cameras.
Good luck with the hunt......and safe travels.
Ed Sievers, Denver, CO
07 WBGO Outlook 31C; Toad: '16 Soul with 6-spd DIY
"Be the person you needed when you were younger"