Here is a link for the GPS mount: https://www.amazon.com/dp/B07TGKWGZR/ref=cm_sw_r_apan_glt_i_N7JFFZ56230NK62J0JVC
Viofo's website has both the GPS mount and the cable. The mount is a few dollars less than Amazon, but you'll have to pay shipping whereas on Amazon you won't if you have Prime.
https://www.viofo.com/en/accessories/145-gps-module-for-viofo-a119v3-car-dash-camera.html
Hope you feel better from your crash and glad that your dashcam helped you.
This: https://www.amazon.com/A119MNTGPSV3-VIOFO-Updated-Mount-A119/dp/B07TGKWGZR
I believe some items come packaged with this mount