I'd like to remove the mirrors from my 98 express van and replace them with something vintage - something from the older G-series which will bolt directly into the door. I'm having a hell of a time, though, finding a part to cover up the corner area where the mirror is now after I've removed it. I've seen them on Express vans before where someone has installed big truck/towing mirrors and there's a flat, black piece of plastic in place of the original factory mirror. Does that makes sense? I've tried every google search I can think of but nothing has come up. Little help?