Just after a quick bit of advice. My new/old stock interior rear view mirror arrived today, so tomorrow I want to fit it, of course. It's really to fit an LCV, but hopefully the only differences are that the arm is longer and the mirror itself a bit larger - neither is a problem so long as it will fit in the existing "socket" at the top of the windscreen.
Here is the socket I'm talking about:

My question - how do I remove the existing arm from this socket? Just pull hard? I'm worried about cracking the plastic socket if I do this, and they are unobtainable. Should I perhaps use some gentle hair-dryer heat? Can I remove the socket piece? How? I don't want to have to go behind the headlining if I can help it.....!
Any tips gratefully recieved as ever!
Many thanks - Rick.
