Hello, Bit new to this so please be gentle with me. I am trying to gain access to the aerial as it needs replacing - there is a Bosch aerial fitted at present and I want to revert to the electric hirschman unit. I know that I need to remove the trim but can only see one fastener. Don't want to damage the trim - and it is a very tight fit. Can anyone point me to either an article, pictures or describe the order I should remove things. If not I am likely to be writing a wanted article for "grey boot trim for a saloon" Thanks in advance of a reply if you can help. Stephen.