Do you have ANY mechanical ability? If you do, you can purchase the OEM (original Lexus) antenna MAST on E-bay for about $25. or an aftermarket (made in China, but nice product for about $12. plus shipping. Those prices are a fraction of what just the MAST would cost at Lexus, I think about $100. You don't need the whole antenna, just the mast. If you ARE able to replace it yourself, I'll see if I can PM you instructions to do it. TURN THE RADIO OFF, and leave it off until the mast is replaced or you may very well burn out the motor and then you will need the complete antenna, at a MUCH higher cost.
Sorry but is there a link you can provide me for the purchase? Whats the difference between the MAST and the antenna. I plan to take it to a friend mechanic to do it!