ok I know this is a revival of a VERY old thread so apologies.....I have just got some new mirrors and have the same grey plug to stop the rattling. I only see a screw to retain the mirror position, I don't see one that releases the stem from the base. I want to swap to round mirrors so need to remove the oval ones. Can someone help me with this? I see the groove in the grey plug through the retaining screw hole but not much else. Many thanks
