We bought our truck used, there were holes in the bed where a hitch had been installed, contacted the dealer who initially sold the truck. Advised them that we did not want to know who the previous owners were, but if they could ask them what hitch they installed that we would appreciate knowing so we could get the same hitch without drilling any new holes.
About 30 minutes later, the dealer called us back and said that they had talked with the wife and she was pretty upset, not because we had asked to contact them, but she said that she was upset as she was out of town for a week when her husband had traded the truck in on a new truck, and she had loved the truck and wish he hadn't traded it in.