Cessna TURBO CENTURION T210M 1978 Pilot Operating Handbook page 393

PILOT'S OPERATING HANDBOOK
SUPPLEMENT
CASSETTE-AM/FM STEREO
(TYPE C-114A)
b. To Select Fast Forward (Rewind) -- PUSH SLIGHTLY in for
fast forward or to lock fast forward position, push button in
halfway and release.
c. To Cancel Fast Forward -- RELEASE BUTTON or (if in lock
position) PUSH BUTTON in slightly and release.
- SECTION 5
PERFORMANCE
There is no change to the airplane performance when this avionic
equipment is installed. However, the installation of an externally mounted
antenna or several related external antennas, will result in a minor
reduction in cruise performance.
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