87luxsprt

I need and are looking for the wiring pinouts (2013 chevrolet silverado)for the plug that goes into the back of the silverado truck gauge cluster. I have the cluster from the donor truck. was thinking it would be cool to use the dash and kept the same miles the truck had. i dont have the plug.
also does anybody know if theres something else connected to the cluster to make it work?. salvage yard cut the big wire loom going into the firewall.

Thanks in advance for any help!