My 51 chevy 1/2 ton came without a headliner. There are traces of the old one around the edges held in with trim but no center piece.I ordered a headliner from LMC .The only one listed for my truck. It came in two pieces. I called to ask what to do with the middle.They told me I could glue it down and to just butt the two pieces of cardboard together. Am I missing a piece of trim? Is there something that goes across the center?I was planning to try taping the back edge to hold the butt joint tight but this sounds too mickey mouse to me.Besides getting an expensive custom headliner built,what are my options here?Thanks---Jack