Quick Q - how do you retract the antenna (non-power)? Or is it a case of removing it? I had a rough fiddle the other day, but couldn't get the antenna to budge.
Reason I ask is for drive-through car washes, they want you to have your antenna down/removed.
I see that that with quite a few of the newer hatches etc. you simply unscrew the antenna and take it off.

if its the one just above the drivers window it should just retract into the windscreen pillar

Yes, but how?

push it down wards, it may be a little stiff, consult your owners manual first though.

try some crc in there? loosen it up if its a bit rusty..