To replace the radio antenna on a Cutlass Supreme, first, locate the antenna mount, usually found on the fender or rear of the vehicle. Remove any trim or covers if needed, then disconnect the old antenna by unscrewing it from the mount and unplugging the cable. Install the new antenna by reversing the removal process: attach the base, secure it with screws, and reconnect the antenna cable. Finally, replace any trim and test the radio for proper reception.
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