can anyone find/identify this?

[SeanZ4]

When the top is folded down on my '00 S there's a hole with an allen-like bolt in the "elbow" folded part of the convert. top frame. There's a plastic plug / cap on the passengers side and just a hole on the drivers side exposing this nasty dirty bolt hole. I have to look at it every time I get into the car. I know this is a petty issue, but does anyone have a suggestion as to where I can find this part??? I've looked at the diagrams on rennlist and still can't find it. I can take a pic when I go home for lunch??? It's just a inch or so long plastic trim plug.

thanks!
sean