I posted a question about the Pro Rack, and got some pretty good feedback from you guys. On your advice, I contacted Buck at ISP, who told me that I could order a replacement part. Now I can't get him to reply, so I think he might be busy over there. I know that the pics aren't the best, but should identify what I am talking about. If I walk into Radio Shack, what is this that I am asking for? Thanks for the assist.