I bit the bullet and found a supplier that sends the whole glass (touch panel) and frame unit. Cost just over $200USD plus deliver. Have installed it and replaced the old and it looks like new.
www.opuradio.com
just googled how to remove the unit and all in all took about an hour to casually take it apart. Just needed a screw driver and a star key
The Best OEM Touch Screen Car Navigation drive loader Factory Radio Spare Parts | Opuradio
We provide the best original LCD touch screen car radio navigation and spare replacements for whom were looking for professional car monitor navigation radio.

just googled how to remove the unit and all in all took about an hour to casually take it apart. Just needed a screw driver and a star key