Toyota Repair: Can you help with a lexus?, antenna mast, antenna cable

Question
QUESTION: Do you know how to change the power antenna on a 2002 rx300?  I bought the antenna on eBay but it didn't come with directions.

Thanks,

Tony

ANSWER: Are you replacing the complete antenna or just the mast portion?

---------- FOLLOW-UP ----------

QUESTION: I'm trying to replace just the mast.  I can still hear the motor turning when I turn the radio on and off but the mast barely moves.  I'm hoping it is just the mast.

Thanks,

Tony

Answer
Remove the round chrome nut from the antenna, turn the radio and pull the antenna mast all the way out, note which way the teeth are facing, compare the old and new cable length, if they are exactly the same then it's just amatter of feeding the new antenna cable in while someone turns the radio off, if the old one is shorter then there is a piece broken ofrf inside the motor and the motor has to be opened to get the broken piece out.