Thanks guys. I ordered a replacement mast (only $16) from autohausAZ and may just replace the mast and see what happens. From what I have read, replacing the mast is not that difficult (loosen the nut holding the mast on the car and let the mast go up until you pull it completely out, then do the reverse with the new mast, turning the radio off to pull the new mast down and tighten the nut).