how hard is it to replace my phone antennae on an '95 s500?i think the cogs/gears have broken off at the bottom of the shaft.what are the procedures to take and what parts will i need?does the cd stacker come out?any 'tricks' to save me some grief?thanks!

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'95 s500 (bought for wife but can't bear to share!!!) 125kms
'92 legend 180kms
'88 tbirdturbo(fantastic car-only regular maint.)120kms
'87 mustang gt(gone)
'86 tbirdturbo(gone)
'85 mustang gt(gone-but not forgotten)