Your plate is shown here, WP6RCA itís just called an input wall plate. I still think you could adapt one of the plates I linked to earlier or maybe contact Concertone and see if they have a suggestion for updating it. http://www.concertone.com/product_gallery.html
2015 Forester 2801QS GTS
TOAD-Hobie Mirage Pro Angler 14 kayak and Yamaha Zuma 50cc scooter on a custom trailer.