DMO Scottsdale AZ

I hear Barney is the expert when it comes to GM power Antenna from the 80's Cadillac's and Buicks. I have an 1984 eldorado that seems to have the dreaded power antenna disease, motor constantly runs but does not retract. I would like to see if barney is still rebuilding these power antennas and if he would be interested in working on my antenna? Question for the forum... does anyone have any idea on how to remove the antenna from its position. Thanks in advance and I look forward to hearing from you. Regards, Dave from Arizona